This planetary boundaries framework update finds that six of the nine boundaries are transgressed, suggesting that Earth is now well outside of the safe operating space for humanity. Ocean acidification is close to being breached, while aerosol loading regionally exceeds the boundary. Stratospheric ozone levels have slightly recovered. The transgression level has increased for all boundaries earlier identified as overstepped. As primary production drives Earth system biosphere functions, human appropriation of net primary production is proposed as a control variable for functional biosphere integrity. This boundary is also transgressed. Earth system modeling of different levels of the transgression of the climate and land system change boundaries illustrates that these anthropogenic impacts on Earth system must be considered in a systemic context.


The planetary boundaries framework (12) draws upon Earth system science (3). It identifies nine processes that are critical for maintaining the stability and resilience of Earth system as a whole. All are presently heavily perturbed by human activities. The framework aims to delineate and quantify levels of anthropogenic perturbation that, if respected, would allow Earth to remain in a “Holocene-like” interglacial state. In such a state, global environmental functions and life-support systems remain similar to those experienced over the past ~10,000 years rather than changing into a state without analog in human history. This Holocene period, which began with the end of the last ice age and during which agriculture and modern civilizations evolved, was characterized by relatively stable and warm planetary conditions. Human activities have now brought Earth outside of the Holocene’s window of environmental variability, giving rise to the proposed Anthropocene epoch (45).
Planetary-scale environmental forcing by humans continues and individual Earth system components are, to an increasing extent, in disequilibrium in relation to the changing conditions. As a consequence, the post-Holocene Earth is still evolving, and ultimate global environmental conditions remain uncertain. Paleoclimate research, however, documents that Earth has previously experienced largely ice-free conditions during warm periods (67) with correspondingly different states of the biosphere. It is clearly in humanity’s interest to avoid perturbing Earth system to a degree that risks changing global environmental conditions so markedly. Ice cover is only one indicator of substantial system-wide change in numerous other Earth system dimensions. The planetary boundaries framework delineates the biophysical and biochemical systems and processes known to regulate the state of the planet within ranges that are historically known and scientifically likely to maintain Earth system stability and life-support systems conducive to the human welfare and societal development experienced during the Holocene.
Currently, anthropogenic perturbations of the global environment are primarily addressed as if they were separate issues, e.g., climate change, biodiversity loss, or pollution. This approach, however, ignores these perturbations’ nonlinear interactions and resulting aggregate effects on the overall state of Earth system. Planetary boundaries bring a scientific understanding of anthropogenic global environmental impacts into a framework that calls for considering the state of Earth system as a whole.
For >3 billion years, interactions between the geosphere (energy flow and nonliving materials in Earth and atmosphere) and biosphere (all living organisms/ecosystems) have controlled global environmental conditions. Earth system’s state changed in response to forcings generated by external perturbations (e.g., solar energy input and bolide strikes) or internal processes in the geosphere (e.g., plate tectonics and volcanism) or biosphere (e.g., evolution of photosynthesis and rise of vascular plants). These forcings were processed through interactions and feedbacks among processes and systems within Earth system, shaping its often complex overall response. Today, human activities with planetary-scale effects act as additional forcing on Earth system. Thus, the anthroposphere has become an additional functional component of Earth system (38), capable of altering Earth system state. The planetary boundaries framework formulates limits to the impact of the anthroposphere on Earth system by identifying a scientifically based safe operating space for humanity that can safeguard both Earth’s interglacial state and its resilience.
The Holocene state of Earth is the benchmark reference in this context, as many of the components comprising the planetary boundary framework were rather stable during this period. This is also the only Earth system state civilizations have historically known. Climate is a manifestation of external forcing, e.g., solar activity, orbital cycles, and interactions among Earth system components, and global mean surface temperature varied by only ±0.5°C (9) from the Neolithic [~9000 before the present (B.P.)] until the Industrial Revolution. Biomes across Earth have also largely been stable over the past 10,000 years, with preindustrial global terrestrial net primary production (NPP) varying by not >55.9 ± 1.1 billion tonnes (Gt) of C year−1 (2σ) (see the Supplementary Materials). Bias-corrected data (10) confirm that preindustrial global precipitation levels were also stable, particularly from the mid-Holocene onward. These data provide strong support for using the Holocene (see the Supplementary Materials) as the planetary boundaries reference state for a stable and resilient planet.
All of the framework’s individual boundaries therefore adopt preindustrial Holocene conditions as a reference for assessing the magnitude of anthropogenic deviations. Available data and state of knowledge from analytics and modeling of the framework components dictate the methods for derivation and quantification of the individual boundaries and their precautionary guardrails. Despite data constraints, efforts have been made to identify suitable control variables for all boundaries, together with evidence of how much perturbation leads to generation of impacts or altered interactions/feedbacks that can potentially cause irreversible changes to Earth’s life support systems. The focus is always at Earth system rather than regional scale, even when the evidence used to establish boundaries originates from regional studies. In these cases, regional evidence is combined to assess Earth system impacts of cumulative transgressions across multiple regional systems.
The planetary boundaries framework has attracted considerable scientific and societal attention, inspiring governance strategies and policies at all levels. The framework evolves through updates made in light of recent scientific understanding. Here, we bring together advances from different fields of science to update the framework and the status of its boundaries. Boundaries are, for the first time, proposed for all of the individual components of the framework. Updates of the functional biosphere integrity and aerosol loading boundaries are based on analyses presented here. Recent analyses form the basis for updates of the freshwater change and novel entities boundaries. Last, the importance of considering human impacts on components of the global environment in a system context is illustrated using a modeling exercise exploring how various scenarios of transgression of the land system (representing the biosphere) and climate change boundaries combine to affect Earth system characteristics.

Framework components

Understanding how biosphere, anthroposphere, and geosphere processes interact with one another is a prerequisite for developing reliable projections of possible future Earth system trajectories. A fully process-based understanding of the interactions between these domains is, however, still only partially available. The planetary boundaries framework calls for more deeply integrated modeling of Earth system by bringing together currently available evidence for the relevant processes and their interactions from different disciplines and sources.
The nine boundaries all represent components of Earth system critically affected by anthropogenic activities and relevant to Earth’s overall state. For each of the boundaries, control variables are chosen to capture the most important anthropogenic influence at the planetary level of the boundary in focus. For example, land system change arises from myriad human activities, ultimately aggregating to alteration of biomes. From a planetary perspective however, during the Holocene, forests were the land biome with the strongest functional coupling to the climate system (1112). Therefore, global reduction in forest area is adopted as the control variable representing all land system change. Similarly, the control variable introduced here for the functional component of the biosphere integrity boundary, human appropriation of NPP (HANPP), focuses on the ability of the biosphere as a whole to provide functional feedbacks in Earth system. Control variables should ideally lend themselves to empirical determination and be computable for use in Earth system projections (e.g., process-based simulation of future change in forest cover) where possible.
Boundary positions do not demarcate or predict singular threshold shifts in Earth system state. They are placed at a level where the available evidence suggests that further perturbation of the individual process could potentially lead to systemic planetary change by altering and fundamentally reshaping the dynamics and spatiotemporal patterns of geosphere-biosphere interactions and their feedbacks (1314).
Zone of increasing risk (of Earth system losing Holocene-like characteristics) is now used to assess the status for transgressed boundaries rather than the “zone of uncertainty” (2) as demarcation of this zone is based on more than what is usually referred to as scientific uncertainty. A large body of recent research [e.g., (1517)] provides strong evidence supporting the conclusion (2) that the climate change and biosphere integrity boundaries are in a zone of rapidly increasing and systemically linked risks. This strengthens the rationale for using the precautionary principle to set the planetary boundaries at the lower end of the zone of increasing risk. For example, for the climate change planetary boundary, we retain the boundary of 350 parts per million (ppm) CO2 with the zone of increasing risk ranging from 350 to 450 ppm before reaching high risk. This corresponds approximately to a range of global mean surface temperature rise of 1° to 2°C (assuming mainstream scenarios on non-CO2 forcing). Precaution places the planetary boundary at the start of increasing risk (350 ppm ≈ 1°C), i.e., slightly below the 1.5°C target identified in the Paris Agreement. The 1.5°C target is one that science increasingly demonstrates is associated with substantial risk of triggering irreversible large change and that crossing tipping points cannot be excluded even at lower temperature increases (18). In recognition of the buffering resilience of Earth system, most boundaries are nevertheless set at values higher than their observed range through the Holocene up to the Industrial Revolution (for CO2 ≈ 280 ppm) (see the Supplementary Materials). The stability and characteristic range of variability of interglacial Earth system states in Pleistocene paleoclimate (19) and Earth system modeling (20) suggest that Earth system would likely remain in a stable,
Holocene-like state if all boundaries were respected despite their being at least temporarily outside the envelope of Holocene variability.
The distinction between zones of “increasing” and “high” risk cannot be sharply defined. There is accumulating evidence that the current level of boundary transgression has already taken Earth system beyond a “safe” zone. However, we still lack a comprehensive, integrated theory, backed by observations and modeling studies, that can identify when a transition from a rising level of risk to one with very high and dangerous risks of losing a Holocene-like Earth system state may occur. Therefore, the “burning embers” approach introduced by the Intergovernmental Panel on Climate Change (IPCC) to represent the gradual transitions from moderate (yellow) to high (red) to very high (purple) risks is adopted here.
Fig. 1. Current status of control variables for all nine planetary boundaries.
Six of the nine boundaries are transgressed. In addition, ocean acidification is approaching its planetary boundary. The green zone is the safe operating space (below the boundary). Yellow to red represents the zone of increasing risk. Purple indicates the high-risk zone where interglacial Earth system conditions are transgressed with high confidence. Values for control variables are normalized so that the origin represents mean Holocene conditions and the planetary boundary (lower end of zone of increasing risk, dotted circle) lies at the same radius for all boundaries (except for the wedges representing green and blue water, see main text). Wedge lengths are scaled logarithmically. The upper edges of the wedges for the novel entities and the genetic diversity component of the biosphere integrity boundaries are blurred either because the upper end of the zone of increasing risk has not yet been quantitatively defined (novel entities) or because the current value is known only with great uncertainty (loss of genetic diversity). Both, however, are well outside of the safe operating space. Transgression of these boundaries reflects unprecedented human disruption of Earth system but is associated with large scientific uncertainties.
Throughout Earth’s history, geosphere-biosphere interactions were an internal driver of Earth system state. The climate change planetary boundary is used here as a proxy for the geosphere. Therefore, climate change and biosphere integrity are identified as “core boundaries” (2) in the framework. The introduction of novel entities is a new anthropogenic driver of Earth system change that, if sufficiently transgressed, could, on its own, alter Earth system state. However, this planetary boundary acts largely through perturbation of the core boundaries, especially biosphere integrity. In contrast to the definition applied earlier (2) where “naturally occurring elements mobilized by anthropogenic activities” were included, the definition of novel entities is now restricted to include only entities that, in the absence of the anthroposphere, are not present in Earth system.
Quantifying interactions between boundaries remains a major challenge. However, some progress has been made since the last framework update (2). Recent studies (13142122) have shown that additional or more extensive transgression of one planetary boundary can change risk gradients for other boundaries. For example, there is increasing evidence to suggest that transgressing either the climate change or biosphere integrity planetary boundary can potentially lead to more steeply increasing risk in the other (21). In the current absence of a comprehensive Earth system model that fully captures interactions between all component spheres, we explore below how various scenarios of transgression of the land system (representing the biosphere) and climate change boundaries combine to control biologically mediated carbon storage at the planetary level.


Biosphere integrity

Myriad interactions with the geosphere make the biosphere a constitutional component of Earth system and a major factor in regulating its state. The planetary functioning of the biosphere ultimately rests on its genetic diversity, inherited from natural selection not only during its dynamic history of coevolution with the geosphere but also on its functional role in regulating the state of Earth system. Genetic diversity and planetary function, each measured through suitable proxies, are therefore the two dimensions that form the basis of a planetary boundary for biosphere integrity. As applied here, “integrity” does not imply an absence of biosphere change but, rather, change that preserves the overall dynamic and adaptive character of the biosphere.
Rockström et al. (1) defined the planetary boundary for change in genetic diversity as the maximum extinction rate compatible with preserving the genetic basis of the biosphere’s ecological complexity. We retain the boundary level of <10 E/MSY (extinctions per million species-years). The extinction rate control variable is challenging to apply in operational contexts, but data and methods for directly assessing the genetic diversity component of biosphere integrity are emerging [(23) and the Supplementary Materials]. Although the baseline rate of extinctions (and of new species’ evolution) is both highly variable and difficult to quantify with confidence through geological time, the current rate of species extinctions is estimated to be at least tens to hundreds of times higher than the average rate over the past 10 million years and is accelerating (24). We conservatively set the current value for the extinction rate at >100 E/MSY (2426). Of an estimated 8 million plant and animal species, around 1 million are threatened with extinction (16), and over 10% of genetic diversity of plants and animals may have been lost over the past 150 years (23). Thus, the genetic component of the biosphere integrity boundary is markedly exceeded (Fig. 1 and Table 1).
Previously, Steffen et al. (2) proposed using the Biodiversity Intactness Index (BII) (27), an empirically based metric of human impacts on population abundances, as an interim proxy for functional biosphere integrity. It was noted, however, that the link of BII to Earth system functions remains poorly understood and BII cannot be directly linked to the planetary biogeochemical and energy flows relevant for establishing Earth system state. In addition, BII relies on expert elicitation to estimate temporal changes in species abundances/distributions, and this knowledge is not readily available for many regions, including the oceans. Martin et al. (28) have also recently suggested that BII only partially reflects human impacts on Earth system.
We therefore now replace this metric with a computable proxy for photosynthetic energy and materials flow into the biosphere (29), i.e., net primary production (NPP), and define the functional component of the biosphere integrity boundary as a limit to the human appropriation of the biosphere's NPP (HANPP) as a fraction of its Holocene NPP. NPP is fundamental for both ecosystems and human societies as it supports their maintenance, reproduction, differentiation, networking, and growth. Biomes depend on the energy flow associated with NPP to maintain their planetary ecological functions as integral parts of Earth system. NPP-based energy flows into human societies should therefore not substantially compromise the energy flow to the biosphere (30). The proxy complements the diversity-based dimensions of biosphere integrity, covered by the genetic component, which captures the importance of variability in living organisms for the functioning of ecosystems. The suitability of NPP and HANPP for defining a planetary boundary has previously been discussed by Running (31) and Haberl et al. (32).
We determine the terrestrial biosphere’s Holocene NPP to have been 55.9 Gt of C year−1 (2σ) and exceedingly stable, varying by not more than ±1.1 Gt of C year−1 despite regional variations in time (see the Supplementary Materials). Our model analyses suggest that NPP still had a Holocene-like level in 1700 (56.2 Gt of C year−1 for potential natural vegetation and 54.7 Gt of C year−1 when land use is taken into account). By 2020, potential natural NPP would have risen to 71.4 Gt of C year−1 because of carbon fertilization, a disequilibrium response of terrestrial plant physiology to anthropogenically increasing CO2 concentration in the atmosphere, whereas actual NPP was 65.8 Gt of C year−1 due to the NPP-reducing effects of global land-use (see the Supplementary Materials).
HANPP designates both the harvesting and the elimination or alteration (mostly reduction) of potential natural NPP (32), mainly through agriculture, silviculture, and grazing. Terrestrial HANPP can be estimated both as a fraction of potential natural NPP [15.7% in 1950 and 23.5% in 2020; inferred from (33) and the Supplementary Materials] and of Holocene mean NPP (30% or 16.8 Gt of C year−1 in 2020; see the Supplementary Materials). We argue that an NPP-based planetary boundary limiting HANPP should be set in relation to preindustrial Holocene mean NPP and not the current potential natural NPP. This is because the global increase in NPP due to anthropogenic carbon fertilization constitutes a resilience response of Earth system that dampens the magnitude of anthropogenic warming. Hence, the NPP contribution to a carbon sink associated with CO2 fertilization should be protected and sustained rather than considered as being available for harvesting. Examples of large land areas under human use with declining carbon sinks, some even turning into carbon sources, i.e., due to human overexploitation of biomass, are already being observed, for example, in some Amazonian regions (34) and northern European forests.
As NPP is the basis for the energy and materials flow that underpins the biosphere’s functioning (30), we argue that today’s planetary-scale impact of HANPP is reflected in the observation that major indicators of the state of the biosphere show large and worrisome declines in recent decades (16). This suggests that current HANPP is well beyond a precautionary planetary boundary aiming to safeguard the functional integrity of the biosphere and likely already into the high-risk zone. We therefore provisionally set the functional component of the biosphere integrity planetary boundary at human appropriation of 10% of preindustrial Holocene mean NPP, shifting into the zone of high risk at 20%. The boundary thus defined was transgressed in the late 19th century, a time of considerable acceleration in land use globally (35) with strong impacts on species (27), already leading to early concerns about the effects of this large-scale land transformation.
Thus, while the climate warming problem became evident in the 1980s, problems arising in functional biosphere integrity due to human land use began a century earlier. Since the 1960s, growth in global population and consumption further accelerated land use, driving the system further into the zone of increasing risk. HANPP has always sustained humanity’s need for food, fiber, and fodder, and this will continue to be the case in the future, as well as for sustainable societies. The NPP required to support future societies must, however, increasingly be generated through additional production of NPP above the Holocene baseline, not including the NPP generated for biology-based carbon sinks. Feeding 10 billion people, for example, is theoretically possible within planetary boundaries but requires a number of far-reaching transformations to improve the impacts of production and regulate demand (36).
To develop a deeper foundation for the HANPP-based planetary boundary for functional biosphere integrity, we need an improved understanding of how ecological dynamics generate the functions of the biosphere in Earth system. Analysis of NPP should be spatially explicit and augmented by computable metrics of ecological destabilization due to climate and land use pressures, e.g., a metric of biogeochemical disruption (37).
HANPP can also be quantified for marine systems. About two-thirds of the ocean area where HANPP is >10% is found above the shallow shelf areas (38) where ecosystems are most intensely exploited. Regionally, fish catches exceed thresholds of sustainable exploitation (39). However, in contrast to land, where most HANPP occurs in the form of plant material, i.e., at the lowest trophic level, HANPP in the ocean tends to take place at higher trophic levels. This means that while HANPP reduces the absolute amount of energy available to higher trophic levels on land, much of the energy fixed through NPP is used in marine ecosystems before HANPP occurs. When the abundance of organisms at the highest trophic levels is reduced, changes in marine ecosystem structure may change energy flow in these ecosystems (40). Thus, in the marine realm, HANPP likely changes the flows rather than the amount of energy available. More information about the impacts of HANPP in the marine realm is necessary to integrate consideration of the marine systems in the functional biosphere integrity planetary boundary.

Climate change

Climate change control variables and boundary levels are retained (12). The most important drivers of anthropogenic impacts on Earth’s energy budget are the emission of greenhouse gases and aerosols, and surface albedo changes (17). The control variables in the framework are the annual averages of atmospheric CO2 concentration and the change in radiative forcing. The planetary boundary for atmospheric CO2 concentration is set at 350 ppm and for radiative forcing at 1 W m−2. Currently, the estimated total anthropogenic effective radiative forcing is 2.91 W m−2 [2022 estimate, relative to 1750 (17)], and atmospheric CO2 concentration is 417 ppm [annual mean marine surface value for 2022 (41)], i.e., further outside the safe operating space on both measures than in the last update (2). The 350-ppm boundary would lead to a lower level of anthropogenic global warming than the internationally agreed 1.5°C target in the United Nations Paris Climate Agreement but is consistent with recent studies (171842) suggesting the possibility of extreme Earth system impacts even at 1.5o warming, with risks increasing already markedly above 1° warming.

Novel entities

The definition of this boundary is now restricted to truly novel anthropogenic introductions to Earth system. These include synthetic chemicals and substances (e.g., microplastics, endocrine disruptors, and organic pollutants); anthropogenically mobilized radioactive materials, including nuclear waste and nuclear weapons; and human modification of evolution, genetically modified organisms and other direct human interventions in evolutionary processes. Novel entities serve as geological markers of the Anthropocene (5). However, their impacts on Earth system as a whole remain largely unstudied. The planetary boundaries framework is only concerned with the stability and resilience of Earth system, i.e., not human or ecosystem health. Thus, it remains a scientific challenge to assess how much loading of novel entities Earth system tolerates before irreversibly shifting into a potentially less habitable state.
Hundreds of thousands of synthetic chemicals are now produced and released to the environment. For many substances, the potentially large and persistent effects on Earth system processes of their introduction, particularly on functional biosphere integrity, are not well known, and their use is not well regulated. Humanity has repeatedly been surprised by unintended consequences of this release, e.g., with respect to the release of insecticides such as DDT and the effect of chlorofluorocarbons (CFCs) on the ozone layer. For this class of novel entities, then, the only truly safe operating space that can ensure maintained Holocene-like conditions is one where these entities are absent unless their potential impacts with respect to Earth system have been thoroughly evaluated. This would imply that the quantified planetary boundary should be set at zero release of synthetic chemical compounds to the open environment unless they have been certified as harmless and are monitored. That is the target set by the Montreal Protocol with respect to the substances shown to be harmful by contributing to depletion of the ozone layer.
In their analysis of various strategies for establishing a planetary boundary for novel entities, Persson et al. (43) identified the share of released chemicals with adequate safety assessment and monitoring as a candidate control variable. We here adopt this metric. The planetary boundary is then set at the release into Earth system of 0% of untested synthetics. When synthetics released to the environment are thoroughly tested, the ensuing risk of damaging effects is lowered. Admittedly, this approach has weaknesses: Data availability is incomplete; safety studies often focus on narrowly defined toxicity and do not capture the “cocktail effects” of chemical mixtures in the environment nor their effects under specific conditions. The percentage of untested synthetics released globally is unknown. However, Persson et al. (43) report that for the chemicals currently registered under the EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) regulation (a small subset of the chemical universe), ~80% of these chemicals had been in use for at least 10 years without yet having undergone a safety assessment. Likewise, few safety studies consider potential Earth system effects. With such an enormous percentage of untested chemicals being released to the environment, a novel entities boundary defined in this manner is clearly breached. Persson et al. (43) did not identify or quantify a singular planetary boundary for novel entities but, nevertheless, also concluded that the safe operating space is currently overstepped.

Stratospheric ozone depletion

Stratospheric ozone depletion is a special case related to the anthropogenic release of novel entities where gaseous halocarbon compounds from industry and other human activities released into the atmosphere lead to long-lasting depletion of Earth’s ozone layer. The boundary for the safe operating space is set at 276 Dobson units (DU), i.e., allowing a <5% reduction from the preindustrial level of 290 DU, assessed by latitude (1). Following the ratification of the Montreal Protocol in 1987, the trend and global extent of ozone depletion have recovered slightly (4445). The current (2020) global estimate is 284 DU (see the Supplementary Materials). Thus, the human perturbation of the stratospheric ozone depletion has decreased and is now within the safe operating space. The boundary for ozone depletion is currently only transgressed over the Antarctic and southern high latitudes and only in the 3-month Austral spring (45).

Freshwater change

To comprehensively reflect anthropogenic modifications of Earth system functions of freshwater, this boundary is revised to consider changes across the entire water cycle over land (4648). We here use streamflow as a proxy to represent blue water (surface and groundwater) and root-zone soil moisture to represent green water (plant-available water) (4648). Control variables are defined as the percentage of annual global ice-free land area with streamflow/root-zone soil moisture deviations from preindustrial variability (4648). The new green water component directly accounts for hydrological regulation of terrestrial ecosystems, climate, and biogeochemical processes (48), whereas the blue water component accounts for river regulation and aquatic ecosystem integrity (46). Moreover, this boundary now captures Earth system impacts of both water increases and decreases on a monthly scale and includes their spatial patterns (see the Supplementary Materials).
The control variables describe deviations from the preindustrial (here, 1661–1860) state, first determined at the 30 arc-min grid cell scale and further aggregated to a global annual value. For both blue and green water control variables, boundaries are set at the 95th percentile of preindustrial variability, i.e., variability of the percentage of global land area with deviations [~10% for blue and ~11% for green water; (46) and the Supplementary Materials]. We assume that preindustrial conditions are representative of longer-term Holocene conditions and that notable deviation from this state puts freshwater’s Earth system functions at risk. Pending comprehensive assessment of impacts of different transgression levels of the blue and green water boundaries (e.g., reduced carbon sequestration capacity, climate regulation, and biodiversity loss; see the Supplementary Materials), the boundary settings are preliminary and highly precautionary. Currently, ~18% (blue water) and ~16% (green water) of the global land area experience wet or dry freshwater deviations (46). Thus, in contrast to the earlier planetary boundary assessments (12) where only blue water removal was considered, this new approach indicates substantial transgression of the freshwater change boundary. Transgressions of both the blue and green water boundaries occurred a century ago, in 1905 and 1929, respectively (46). Thus, with the revised definition of the control variables, fresh water would have been considered transgressed already at the time of the previous planetary boundary assessments. The previous global-scale control variable would still indicate freshwater use to remain in the safe zone, even with newer data sources than those used in (12). Recent estimates of global blue water consumption totals ~1700 km3 year−1 (49), i.e., far below the previous boundary set at 4000 km3 year−1.

Atmospheric aerosol loading

Aerosols have multiple physical, biogeochemical, and biological effects in Earth system, motivating their inclusion as a planetary boundary (see the Supplementary Materials). Anthropogenic aerosol loading has increased (50). Changes since the preindustrial for natural aerosols (e.g., desert dust, soot from wildfires) are difficult to assess because of model differences in the sign of trends (51), but observational evidence suggests a global doubling of dust deposition since 1750 (52). At present, the Sahara is the world’s largest dust source region [e.g., (53)], but earlier in the Holocene, it was a vegetated landscape with many lakes and wetlands (14,500 to 5000 B.P.). Changes in monsoon rainfalls, involving vegetation-dust-climate feedbacks, are thought to have terminated the “green Sahara,” leading to major displacements of human settlements across parts of Africa and Asia (54).
Quantification of the aerosol loading planetary boundary is hampered by their multiple natural and human-caused sources, differences in chemical composition, seasonality and atmospheric lifetimes, and the consequently very large spatial and temporal heterogeneity in distribution and climatic and ecological impacts of aerosols. Nevertheless, aerosol optical depth (AOD) provides a generic control variable for aerosol loading. AOD is an integrated measure of the overall reduction in sunlight reaching Earth's surface caused by all absorption and scattering in the vertical air column. On the basis of the evidence of the impacts of large AOD on regional precipitation over southern Asia, Steffen et al. (2) set a provisional regional planetary boundary of AOD = 0.25 (0.25 to 0.5) on the basis that higher AOD values in monsoon regions likely lead to significantly lower rainfall, ultimately affecting biosphere integrity. The annual mean AOD in southern Asia is currently about 0.3 to 0.35 (5556). The current value for the East China region is 0.4 (55). Thus, aerosol loading in these regions has likely exceeded the regionally defined boundary, but with high uncertainty. Data and assessments of aerosol impacts on climate and ecosystems are lacking to determine whether this regionally defined boundary is applicable elsewhere. Global mean AOD at present is 0.14 (57), with much higher levels in some regions and with very strong gradients from land to open ocean (56).
In addition to the direct effects of AOD on regional climate and precipitation, asymmetries in AOD between northern and southern hemispheres can affect multiple monsoon systems, as seen for the West African monsoon (58) and Indian monsoon (5960). The interhemispheric difference in AOD affects regional monsoon rainfall by shifting the location of the Intertropical Convergence Zone (61). Large asymmetries in the temperature of northern and southern hemispheres arise from differences in natural and anthropogenic aerosol emissions, land cover, and other climate forcers (58596263). The asymmetric radiative forcing resulting from aerosol effects leads to a relative cooling of the northern hemisphere and a southward shift in tropical precipitation (64). The interhemispheric AOD difference and its impact on tropical precipitation and water availability are sensitive to the particle size and latitudinal and altitudinal distribution of aerosols (65). Studies of aerosol-climate interactions following volcanic eruptions (66) indicate that monsoon precipitation in the northern hemisphere is weakened when northern hemisphere AOD is higher and the interhemispheric AOD difference is greater and is enhanced when more aerosols are emitted in the southern hemisphere (smaller interhemispheric AOD difference). This understanding is broadly consistent with the decrease in tropical mean precipitation after major volcanic eruptions in observations and global climate models (67). The IPCC AR6 has assessed that observed decreases in global land monsoon precipitation from the 1950s to the 1980s are partly attributed to human-caused northern hemisphere aerosol emissions, thus relatively larger interhemispheric difference (17). In addition to volcanic aerosols, monsoon dynamics and the associated regional rainfalls also respond to changes in anthropogenic aerosols (see the Supplementary Materials).
We therefore propose the annual mean interhemispheric difference in AOD as a globally defined control variable for aerosol loading. The present-day interhemispheric difference is ~0.076 ± 0.006 (mean ± SD), based on 12 observational estimates, reaching ~0.1 in the boreal spring and summers, due to the seasonal increase in dust storms that dominate in the northern hemisphere (55). The preindustrial annual mean value is estimated as ~0.03, based on multimodel analyses (68), indicating an increase in interhemispheric AOD difference by ~0.04 in the industrial era. Present-day interhemispheric AOD difference is consistent with Coupled Model Intercomparison Project 6 (CMIP6) emission inventories that show more anthropogenic aerosols in the northern hemisphere, with future projections suggesting a decrease in the asymmetry (69).
We assign a planetary boundary value of 0.1 for the mean annual interhemispheric difference in AOD, with high uncertainty about the zone of increasing risks, 0.1 to 0.25. In setting this boundary, we note that the impacts of aerosol loading on tropical monsoon systems are already seen today, and the impact is not only restricted to rainfall but also affects regional climate more broadly. Aerosol-cloud interaction might exacerbate effects of AOD asymmetry. The contribution of aerosol-cloud interactions to the hemispheric asymmetry of reflected shortwave radiation is unclear. Take for instance the current range of anthropogenic aerosol effective radiative forcing for present day that has been reported to be −1.6 to −0.6 W m−2 in the global mean for the 16 to 84% confidence interval, with aerosol-cloud interactions as a major source for uncertainty (51). Other large-scale effects of aerosols, such as air quality impacts on land and marine ecosystems, are also already evident (1770). Biogenic aerosols have not been considered, despite their role in feedbacks in Earth system. A much better systemic and quantitative understanding of the hydroclimatic, ecological, and biogeochemical effects of asymmetric aerosol forcing is needed to refine the aerosol loading boundary.

Ocean acidification

The control variable used is the carbonate ion concentration in surface seawater (specifically, Ωarag, the average global surface ocean saturation state with respect to aragonite). The original boundary quantification [≥80% of the preindustrial averaged global Ωarag of 3.44 (1)] is retained. A recent estimate sets the current Ωarag at ~2.8 (71) (see the Supplementary Materials), approximately 81% of the preindustrial value. Thus, anthropogenic ocean acidification currently lies at the margin of the safe operating space, and the trend is worsening as anthropogenic CO2 emission continues to rise.

Land system change

This boundary focuses on the three major forest biomes that globally play the largest role in driving biogeophysical processes (2), i.e. tropical, temperate, and boreal. The control variable remains the same: forest cover remaining compared to the potential area of forest in the Holocene (2). The boundary positions remain at 85%/50%/85% for boreal/temperate/tropical forests (cf. Table 1 and the Supplementary Materials). On the basis of 2019 land-cover classification maps derived from satellite observations (72), the current state of the regional biomes is similar to that in 2015 although, for most regions, the amount of deforestation has increased since 2015 (see the Supplementary Materials). Land-use conversion and fires are causing rapid change in forest area (7374), and deforestation of the Amazon tropical forest has increased such that it has now transgressed the planetary boundary (Table 1). Changes in the methodology and technology used to estimate forest cover since 2015 may be influencing the biome-level differences reported here compared to the last update (2). Nevertheless, there is little doubt that the global forest area continues to decrease (74).

Biogeochemical flows

Biogeochemical flows reflect anthropogenic perturbation of global element cycles. Currently, the framework considers nitrogen (N) and phosphorus (P) as these two elements constitute fundamental building blocks of life, and their global cycles have been markedly altered through agriculture and industry. Anthropogenic impacts on global carbon cycling are equally fundamental but are addressed in the climate and biosphere integrity boundaries. Other elements could come into focus under this boundary as an understanding of human perturbation of element cycles advances. For both N and P, the anthropogenic release of reactive forms to land and oceans is of interest, as altered nutrient flows and element ratios have profound effects on ecosystem composition and long-term Earth system effects. Some of today’s changes will only be seen on evolutionary time scales, while others are already affecting climate and biosphere integrity.
For P, we retain the regional-level and global boundaries proposed by Steffen et al. (2). The global boundary for P is a sustained flow of 11 Tg of P year−1 from fresh water to the ocean, to avoid large-scale anoxia. We have not found newer studies quantifying P flows in fresh water to the sea since that used for the 2015 framework update, i.e., an estimated 22 Tg of P year−1 (75). The regional level boundary is set at a flow of 6.2 Tg of P year−1 from fertilizers to erodible soils, to avert widespread eutrophication of freshwater ecosystems. The current rate of application of P in fertilizers to croplands is 17.5 Tg of P year−1 (76) although P use is rising and much higher estimates of up to 32.5 Tg of P year−1 have been reported in other studies (7779). Thus, both the global and regional boundaries for P are exceeded. The planetary boundary for N is the application rate of intentionally fixed N to the agricultural system of 62 Tg of N year−1 [unchanged from (2)]. Currently, the application of industrially fixed N fertilizer is 112 Tg of N year−1 (80). Quantification of anthropogenic biological N fixation in connection with agriculture is highly uncertain, but the most recent estimates are in the range of ~30 to 70 Tg of N year−1 (8183). According to Food and Agriculture Organization (84), the total introduction of anthropogenically fixed N applied to the agricultural system is ~190 Tg year−1 so this boundary is also globally transgressed.


Six planetary boundaries are found currently to be transgressed (Fig. 1 and Table 1). For all of the boundaries previously identified as transgressed [climate change, biosphere integrity (genetic diversity), land system change, and biogeochemical flows (N and P)], the degree of transgression has increased since 2015. We have introduced HANPP as a control variable for the functional component of biosphere integrity and argue that this boundary is also transgressed. Drawing on the considerable recent scientific progress made in refining the safe operating space for water, control variables for both green and blue water components are now included in the freshwater change planetary boundary. The boundary is transgressed for both components. Global boundaries for aerosol loading and novel entities are proposed. The novel entities boundary is transgressed. The global aerosol loading boundary is not transgressed although regional transgressions are noted.

Earth system effects of differing scenarios of transgression of land system change and climate boundaries

To illustrate the importance of considering the multiple anthropogenic impacts on the global environment in a systemic context rather than individually, we examine how varying degrees of transgression of the climate and land system change boundaries combine to influence two codeterminants of Earth system state: temperature and terrestrial carbon storage.
For climate change, the Potsdam Earth Model (POEM) [(85) and the Supplementary Materials] is forced by increased atmospheric carbon dioxide levels (350, 450, and 550 ppm), and land system change is forced with land-use patterns representing different extents of tropical, temperate, and boreal forest cover (see the Supplementary Materials). As some biological processes take centuries to approach a steady state, we investigate changes in both the short (1988–2100) and the long term (2100–2770). This also enables us to examine the veracity of the placement of these planetary boundaries and their zones of increasing risk in terms of critical Earth system responses.
According to these simulations, anthropogenic activities brought both climate and land system change outside of their safe operating space around 1988. Had Earth system remained forced by 1988 conditions (350 ppm and 85%/50%/85% of tropical/temperate/boreal forest cover remaining), the simulations show that temperature over the global land surface would not have increased by more than an additional 0.6°C in the subsequent 800 years (and not >1.3°C compared to the preindustrial period). Only a small (cumulative 25 Gt of C) terrestrial carbon source would have developed by 2100 and a cumulative source of not >68 Gt of C after 800 years. Thus, the exercise suggests that essentially stable planetary conditions would have been maintained had human impacts on these two boundaries remained at their 1988 levels, i.e., marginally within the safe operating space.
Both of these planetary boundaries have, however, since been transgressed into a zone of increasing risk of systemic disruption. If climate and land system change can be halted at 450 ppm and forest cover retained at 60%/30%/60% of boreal/temperate/tropical natural cover, then the simulation indicates a mean temperature rise over land of 1.4°C by 2100 (in addition to 0.7°C between preindustrial time and 1988) and 1.9°C after 800 years as vegetation evolves in a warmer climate and associated carbon fertilization (Fig. 2).
Carbon fertilization of vegetation growth counters the negative impacts of climate warming on the global average carbon sinks, leading to only moderate cumulative loss in terrestrial carbon due to additional deforestation. If, however, deforestation had been maintained at the level of the planetary boundary rather than having been allowed to rise in the zone of increasing risk, then the land biosphere would have developed a cumulative carbon sink rather than a source, contributing to stabilizing Earth’s conditions. In contrast, if deforestation is allowed to breach into the high-risk zone, then simulations show a substantial additional carbon leakage to the atmosphere both over the short and long term (132 and 211 Pg of C), despite strong CO2 fertilization of vegetation growth in the model (Fig. 2).
The situation is even more extreme if atmospheric CO2 concentration rises above the risk zone (550 ppm; Fig. 2) and deforestation continues. Not only is the temperature on land about 2.7°C warmer than in 1988 (3.4°C warmer than preindustrial), but also around 145 Gt of C would be lost long-term from terrestrial vegetation and soils. Note that these findings reflect optimistic modeling assumptions on carbon fertilization. Many of the ecological factors not sufficiently represented in current biogeochemical models could lead to even less desirable consequences of leaving the safe operating space. These simulations illustrate clearly that human impacts on climate and forest cover must be considered in a systemic context. They furthermore support the placement of the planetary boundaries for climate and land system change at the lower end of the zone of increasing risk.

Influence of climate change on biologically mediated C sinks in the ocean

Approximately 450 Gt of C is bound up in terrestrial biota, primarily in plants (86), while only ~6 Gt of C is found in ocean biota (87). Biologically mediated marine carbon sinks are composed of particulate organic carbon (POC) that can potentially sink below the permanent thermocline (biological pump) and dissolved organic C. Via microbial breakdown of POC and dissolved organic C, CO2 is released. When this release influences partial pressure of CO2 in surface waters, it tends to reduce oceanic carbon uptake from the atmosphere. Microbial respiration is highly sensitive to temperature and, in a warmer ocean, an increased release of CO2 in surface waters is predicted (88). The biologically mediated carbon sink in the ocean most exposed to climate change is the amount of carbon fixed by photosynthesis (NPP), i.e., POC, in the surface ocean that is ultimately transported into the ocean interior via the biological pump. When this occurs, the resulting carbon drawdown reduces partial pressure of CO2 in the surface layer and tends to increase the atmosphere-to-ocean CO2 flux.
These biological processes are implicitly and, in some cases, explicitly included in the CMIP6 models informing the IPCC. However, as these models configure biologically mediated carbon flows differently, there is considerable variability in their results. Models used by the IPCC do not even agree on the direction of change in NPP in response to climate change (89). Our model runs (see the Supplementary Materials) suggest no significant change in globally averaged ocean NPP under the different climate forcing conditions and only a modest decrease in exported material out of the surface layer [new production (ΔNP); Table 2]. Using empirical relationships (9091) describing the transfer of carbon to the ocean interior and derived from the contemporary ocean to estimate biological pump sensitivity to future temperature increases indicates a similar weakening of the pump in the upper ocean (Table 2 and the Supplementary Materials). That these two independent methods indicate similar decreases in the export of POC from the surface layer lends confidence both in the direction and magnitude of climate impacts on this biologically mediated global carbon sink.
Scenario ΔSST ΔNP ΔF500m ΔΩ ΔDIC0–1000m
(ppm) (°C) Model (%) Empirical (%) Model (%) Empirical (%) (−) (Gt of C)
350 0.3 2.0 2.5 1.9 1.8 0.0 38
450 1.0 0.0 1.4 0.0 −3.5 −0.4 172
550 1.7 −2.5 −1.0 −3.1 −9.4 −0.7 273


Table 2. Global averaged change in three scenarios from the initial state (1988–2018): change in sea surface temperature (ΔSST), new production (ΔNP), and biogenic particulate flux below 500 m depth (ΔF500m) including model and empirically derived values, surface saturation state of aragonite (ΔΩ), and the DIC inventory between the surface and 1000 m depth (ΔDIC0–1000m).
The analysis shows that DIC (dissolved inorganic carbon; including CO2) accumulates over time in the ocean as a whole, particularly in the upper ocean (<1000 m; Table 2). Changes in the biologically driven accumulation rates are relatively small compared to the change in the total DIC inventory that is mainly driven by the solubility pump, i.e., the tendency of increased oceanic uptake when atmospheric partial pressure of CO2 rises. The organic matter flux below the 500-m-depth horizon (ΔF500m) varies between 3 and 9% between the model and empirically derived fluxes in the 550 ppm scenario with the model-derived sensitivity being lowest. This illustrates the current uncertainty in quantifying climate-driven feedbacks on the biological pump. The implied accumulation of DIC in the surface ocean will tend to decrease the uptake of atmospheric CO2, thus counteracting global actions for stabilizing or even reducing atmospheric CO2 concentrations. The ocean response to reduced greenhouse gases will be complex and occur on different time scales, e.g., the characteristic response time simulated for the total carbon pool in the upper 1000 m is ~150 years (550 ppm; see the Supplementary Materials). However, the natural ocean carbon sink will gradually decrease on millennial time scales.
The reduction of sinking organic material will affect the mesopelagic ecosystem (i.e., the subsurface ecosystem between 200 and 1000 m in depth, one of the largest biomes on Earth and one that hosts numerous transient grazers, including some whales). The flux of organic material via sinking represents the energy source for organisms in this biome. A reduction of up to ~10% of energy flux would potentially have enormous consequences for this biome and, thereby, its biosphere integrity. Recent paleontological reconstructions (92) provide evidence that these decreases in carbon flux to the mesopelagic may have occurred in relation to past climate changes.
Acidification due to increased CO2 reduces the saturation state of aragonite (Ω). It tends to hinder the biological formation of calcium carbonate, an essential component for shell and reef-forming organisms. The relatively short equilibration time of the surface ocean with atmospheric CO2 implies a response time of Ω to increased CO2 of only a few decades, comparable to the current acidification rate (see the Supplementary Materials). The current rate is probably a hundred times faster than at any time during the last hundreds of millennia (93), confirming the tied relations to transgression of the climate change boundary, leading to the rising risk of weakening ocean biosphere integrity, and worsening the aragonite saturation state of the ocean acidification boundary.

A systemic framework for addressing global anthropogenic impacts on Earth system

The scientific updates and analyses presented here confirm that humanity is today placing unprecedented pressure on Earth system. Perhaps most worrying in terms of maintaining Earth system in a Holocene-like interglacial state is that all the biosphere-related planetary boundary processes providing the resilience (capacity to dampen disturbance) of Earth system are at or close to a high-risk level of transgression. In a recent study (18), it was shown that several regional climate tipping points, relevant for stabilizing the global system, have already been or are close to being transgressed, thus weakening global resilience capacity. This implies low/falling resilience precisely when planetary resilience is needed more than ever to cope with increasing anthropogenic disturbances. There is an urgent need for more powerful scientific and policy tools for analyzing the whole of the integrated Earth system with reliability and regularity and guiding political processes to prevent altering the state of Earth system beyond levels tolerable for today’s societies. In addition to more consistent collection and collation of relevant global environmental data, this will require the development of Earth system models that more completely capture geosphere-biosphere-anthroposphere interactions than is the case today. The known interdependence of planetary boundaries is confirmed by Earth system science understanding (1422) of the planet as an integrated, partially self-regulating, system. To better understand the risk to this system and the critical boundaries that humankind should consider in its economic and social activities, Earth system analysis now has to continue advancing a planetary boundaries framework. In addition, it must substantially increase the ecological realism of simulation and analyses of the biosphere as an adaptive core entity of Earth system. These initiatives are underway but have to be further developed into a coherent process of integrated Earth system analysis across the physical, chemical, and biological domains not focused just on climate.
Successfully addressing anthropogenic climate change will require consideration of internal biosphere-geosphere interactions within Earth system. Our model results demonstrate that one of the most powerful means that humanity has at its disposal to combat climate change is respecting the land system change boundary. Bringing total global forest cover back to the levels of the late 20th century would provide a substantial cumulative sink for atmospheric CO2 in 2100. This reforestation seems unlikely, however, given the current focus on biomass as a replacement for fossil fuels and the creation of negative CO2 emissions via bioenergy with carbon capture and storage. Both activities are already serving to increase pressure on Earth’s remaining forest area. Nevertheless, our study indicates that failure to respect the land system change planetary boundary can potentially jeopardize efforts to achieve the global climate goals adopted in the Paris Agreement.
Meanwhile, this update of the planetary boundaries framework may serve as a renewed wake-up call to humankind that Earth is in danger of leaving its Holocene-like state. It may also contribute to guiding the substantial human opportunities for sustainable development on our planet. Scientific insight into planetary boundaries does not limit, but stimulates, humankind to innovation toward a future in which Earth system stability is fundamentally preserved and safeguarded.


To quantify the aerosol boundary, we consider cases where a natural pulse of sulfate aerosol emissions from volcanic eruptions in the northern hemisphere led to subsequent rainfall deficits in the Sahel. The eruption of El Chichón led to a peak interhemispheric AOD difference of 0.07 and that of Katmai to an AOD difference of 0.08 (55). We also consider a model study of intentional sulfate injections into the stratosphere. This study is based on stratospheric aerosols, which have no direct interaction with clouds and vegetation. However, it does indicate that an interhemispheric sulfate AOD difference of ~0.2 would decrease tropical monsoon precipitation in the northern hemisphere by ~10% and India’s mean precipitation by >20% (59). Together, these studies suggest that a raised interhemispheric AOD difference caused by persistent and widely distributed aerosol emissions could lead to major reductions in precipitation in the tropics.
To examine differing scenarios of transgression of land system and climate change boundaries, we use the POEM [(85) and the Supplementary Materials], which links models of atmospheric and ocean circulation with models of the marine (BLING) (94) and terrestrial biosphere (LPJmL5) [(95) and the Supplementary Materials]. We study scenarios where each of these two planetary boundary dimensions are either fixed at the value of the boundary, a value in the zone of increasing risk, or a value in the high-risk zone. Once the respective scenario condition is attained, the associated level of scenario forcing remains constant, while the long-term implications under these fixed conditions evolve. Correspondingly, vegetation dynamics (e.g., biome distributions) and related carbon pools and fluxes develop according to biophysical climate interactions under the given forcing conditions, while biogeochemical feedbacks on the atmosphere are not considered because of the respective boundary or transgression forcing remaining fixed.


This paper is dedicated to our friend, colleague, and co-author, W.S., who passed away. He was deeply involved in developing this paper. Few have made a greater contribution to describing a pathway for humanity’s development in the Anthropocene than W.S. We are grateful for support from K. Noone (aerosols), B. Sakschewski (POEM), and M. Martin (comments). J. Lokrantz (Azote) and D. Biermann (PIK) produced the figures.
Funding: This work was supported by the European Research Council (Project Earth Resilience in the Anthropocene, ERC-2016-ADG 743080); European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant no. 819202); German Federal Ministry for Education and Research (BMBF) through the “PIK Change” framework (grant no. 01LS2001A), and Carlsberg Foundation (Queen Margrethe’s and Vigdís Finnbogadóttir´s Interdisciplinary Research Centre on Ocean, Climate, and Society, CF20-0071). POEM development and application were supported by the Volkswagen Foundation (POEM-PBSim—A Simulator for Earth’s planetary boundaries, AZ 98046) and work on the biosphere functional integrity boundary by the Global Challenges Foundation.
Author contributions: K.R., W.S., J.R., and W.L. led the study by conceiving and coordinating the analyses. K.R. led the writing process. J.B., S.E.C., J.F.D., M.D., and I.F. (alphabetical order) collected and collated data, synthesized literature, supported the analyses, prepared the tables and figures, and provided logistical support. The remaining authors (alphabetical order) contributed to the POEM modeling and/or to new analysis of individual boundaries: G.B. (aerosols), W.v.B. (POEM), G.F. (POEM), S.F. (aerosols), D.G. (fresh water), T.G. (fresh water), M.H. (POEM), W.H. (POEM), M.K. (fresh water), C.M. (fresh water), D.N.-B. (biosphere integrity), S.P. (POEM), M.P. (fresh water), S.R. (POEM), S.S. (POEM and functional biosphere integrity), A.T. (land system change), K.T. (POEM), V.V. (fresh water), L.W.-E. (fresh water), and L.W. (aerosols).
Competing interests: The authors declare that they have no competing interests.
Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. In addition, the POEM modelling data can be found at https://doi.org/10.5281/zenodo.8032156.

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This is our disclaimer of legal liability for the quality, safety, or reliability of our Services.










10. Limitation of Liability

These are the limits of legal liability we may have to you.















11. Additional Terms

  1. Entire Agreement: These Terms constitute the whole legal agreement between you and LinkPower and govern your use of the Services and completely replace any prior agreements between you and LinkPower in relation to the Services.

  2. Age Limit: The Services are only for people 18 years old and over. By using the Services, you confirm that you are over the relevant age specified herein. If we learn that someone under the relevant age specified above is using the Services, we will terminate that user’s account.

  3. No Waiver: Our failure to insist upon or enforce any provision of these Terms shall not be construed as a waiver of any provision or right.

  4. Security: We do not guarantee that our Services will be secure or free from bugs or viruses. You are responsible for configuring your information technology, computer programmes and platform to access our Services. You should use your own virus protection software.

  5. Severability: If any court of law, having jurisdiction to decide on this matter, rules that any provision of these Terms is invalid, then that provision will be removed from the Terms without affecting the rest of the Terms, and the remaining provisions of the Terms will continue to be valid and enforceable.

12. Questions

We welcome any questions, comments and requests regarding these Terms of Use. Please address them to info@linkpower.eco.



Effective 1 November 2023

Last Updated October 2023

Your Privacy Matters

Central to LinkPower’s mission is our commitment to be transparent about the data we collect about you, how it is used and with whom it is shared. LinkPower (the "Company" or "we") are committed to protecting and respecting your privacy.

This Privacy Policy (together with our Terms of Use) sets out how we will process and use any Personal Data we collect from you, or that you provide to us, including cookies. Please read the following carefully to understand our views and practices regarding your personal data and how we will handle it. By visiting www.linkpower.eco (the "Platform"), you indicate that you accept and consent to the terms and conditions set out in this Privacy Policy as amended from time to time.

1. Introduction

We are an online social platform. Our registered users (“Members”) share their identities, engage with their network, exchange knowledge and insights, and post and view relevant content, amongst others. Content and data on some of our Services is viewable to non-members (“Visitors”).

Our Privacy Policy applies to any Member or Visitor to our platform.

2. Services

This Privacy Policy applies to your use of our Services. As a Visitor or Member of our Services, the collection, use and sharing of your personal data is subject to this Privacy Policy and other documents referenced in this Privacy Policy, as well as updates.

3. Changes to Our Privacy Policy

We reserve the right to amend this Privacy Policy at any time. Any changes we make to our Privacy Policy in the future will be posted on this page and, where appropriate, notified to you by e-mail. It is your responsibility to check periodically for any updates or changes to our Privacy Policy.

4. Other

We work constantly to improve our services and develop new features to make our Products better for you and our community. As a result, we may need to update these Terms from time to time to accurately reflect our services and practices, to promote a safe and secure experience on our Products and services, and/or to comply with applicable law. We will only make any changes if the provisions are no longer appropriate or if they are incomplete, and only if the changes are reasonable and take due account of your interests, or if the changes are required for safety and security purposes or to comply with applicable law.

We will notify you at least 30 days before we make changes to these Terms and give you an opportunity to review them before they go into effect, unless changes are required by law. Once any updated Terms are in effect, you will be bound by them if you continue to use our Products.

We hope that you will continue using our Products, but if you do not agree to our updated Terms and no longer want to be a part of the LinkPower community, you can delete your account at any time.

Key Terms

5. Collection of Personal Data

"Personal Data" means any information relating to an identified or identifiable natural person. We will collect and process the following Personal Data:


  • Information about you that you give us by filling in forms on the Platform (including, but not limited to, joining our mailing list and/or submitting an application form to join our whitelist), by corresponding with us by phone, email or otherwise, or by using the functions provided on the Platform. For individual users, such information may include your legal name, alias, address, date of birth, e-mail address, phone number. For corporate users, such information may include all of the foregoing in respect of your employees, directors, officers, shareholders and principals, and information contained in certificates of incorporation or formation.

  • Information relating to of each of your visits to the Platform including the Internet protocol (IP) address used to connect your device to the Internet, browser type and version, time zone setting, browser plug-in types and versions, operating system and platform), the full Uniform Resource Locators (URL), page response times, download errors, length of visits to certain pages and methods used to browse away from the page.

6. Uses of Personal Data

We use your data to provide, support, personalize and develop our Services.

How we use your personal data will depend on which Services you use, how you use those Services and the choices you make in your settings. We use the data that we have about you to provide and personalize our Services, including with the help of automated systems and inferences we make, so that our Services (including ads) can be more relevant and useful to you and others.

We use your Personal Data in the following ways:

  • To carry out our obligations arising from any contracts entered into between you and us and to provide you with the services, information and updates that you request from us (including your participation in our activities or events);

  • To ensure that content on our Platform is presented in the most effective manner for you and for your device;

  • To administer our Platform and for internal operations, including troubleshooting, data analysis, testing, research, statistical and survey purposes; and

  • As part of our efforts to keep the Platform safe and secure.

7. Cookies

Cookies are small files that will be downloaded to your device with your consent. Our Platform uses cookies to distinguish you from other users of our Platform. By continuing to browse the Platform, you are agreeing to our use of cookies.

We use and store certain essential cookies which are necessary for security and for the provision of information requested by yourself when you access the Platform, such as authentication cookies and user input cookies.

We also use the following non-essential cookies:

  • Analytics cookies: These cookies enable us to collect and analyse information about how users access the Platform, including identifying a third party website which directed a user to our Platform.

  • Site performance cookies: These cookies enable us to enhance the operation of the Platform and the services offered.

  • Third party Advertising cookies: These cookies enable third parties to show you relevant advertisements when you access the Platform. We do not attempt to create profiles of users for the purposes of delivering advertising.


Cookies may be erased when you exit the Platform or close the browser. Others are saved on your device for your next visit. You can delete all cookies on your computer and set your browser to prevent cookies from being placed by our Platform. However, please note that some functionalities may not work if you do so.

8. Disclosure of your Personal Data

We have the right to share your Personal Data with:

  • Any member of our group, which means our affiliated companies;

  • Selected third parties including business partners, suppliers and sub-contractors providing search engine, data analytics, authorization, authentication, and hosting and storage services for the performance of any contract we enter into with them or you and for the improvement and optimisation of our site;

  • To third parties in the event that (i) we sell or buy any business or assets, in which case we will disclose your Personal Data to the prospective seller or buyer of such business or assets and/or (ii) if the Company or substantially all of its assets are acquired by a third party, in which case Personal Data held by it about its customers will be part of the assets transferred to such third party; and

  • If we are under a duty to disclose or share your Personal Data in order to comply with any legal obligation, or in order to enforce or apply our Terms of Use or other agreements; or to protect the rights, property, or safety of the Company, our customers, or others. This includes exchanging information with other companies and organisations for the purposes of fraud protection and credit risk reduction.

9. Transfer of Personal Data

Your Personal Data may be transferred to and stored in different jurisdictions and may also be processed by staff operating within the various countries who work for us or for one of our contractors.

10. Retention of Personal Data

We will only retain your Personal Data for as long as necessary for the purposes collected, as set out at paragraph 3 of this Privacy Policy, and for any legal, tax, or accounting requirements.

To determine the appropriate retention period for the Personal Data we hold, we consider the amount, nature and sensitivity of the Personal Data, the risk of harm from unauthorised use or disclosure of your Personal Data, the reasons why we handle your Personal Data and whether we can achieve those purposes through other means, and the applicable legal requirements.

In some circumstances, such as the closing or termination of your Account, we may anonymise your Personal Data so that it can no longer be associated with you for research or statistical purposes, in which case we may use this information indefinitely without further notice to you.

11. Security

We will implement appropriate technical and organizational security measures to ensure a level of security appropriate to the risks of accidental or unlawful destruction, loss, alteration, unauthorized disclosure of or access to your Personal Data.

We monitor for and try to prevent security breaches. We implement security safeguards designed to protect your data. We regularly monitor our systems for possible vulnerabilities and attacks. However, we cannot warrant the security of any information that you send us. There is no guarantee that data may not be accessed, disclosed, altered, or destroyed by breach of any of our physical, technical, or managerial safeguards.

The transmission of information via the internet is not completely secure. Although we will do our best to protect your Personal Data, we cannot guarantee the security of your Personal Data transmitted to our site.

Where you have chosen a password which enables you to access certain parts of our site, you are responsible for keeping this password confidential. We ask you not to share the password with anyone.

12. Your Rights


Right of Access:

  • You have the right to access your Personal Data which we have collected and used.

Right to rectification:

  • You have the right to require us to rectify any inaccurate Personal Data we hold about you;

  • You also have the right to have incomplete Personal Data we hold about you completed, by providing a supplementary statement to us.

Right to restriction:

  • You can restrict our processing of your Personal Data where:

  • You think we hold inaccurate Personal Data about you;

  • Our handling of your Personal Data breaks the law, but you do not want us to delete it and request that we restrict our use of the Personal Data instead; and/or

  • We no longer need to process your Personal Data, but you want us to keep it for legal reasons. Where you exercise your right to restrict us from using your Personal Data, we will only process your Personal Data with your consent, except for storage purposes and to handle legal claims. We will inform you before any restriction of processing is lifted.

Right to data portability:

  • You have the right to receive your Personal Data in a structured, standard machine readable format and to send this to another organisation controlling your Personal Data.

  • This right only applies to your Personal Data we are handling because you consented to us using it or because there is a contract in place between us.

Right to erasure:

  • You have the right to require us to erase your Personal Data which we are handling in the following circumstances:

    • Where we no longer need to use your Personal Data for the purposes for which they were collected;

    • Where we needed your consent to use your Personal Data, you have withdrawn your consent and there is no other lawful way we can continue to use your Personal Data;

    • When you object to our use of your Personal Data and we have no compelling reason to carry on using it;

    • If our use of your Personal Data has broken the law; and

    • When we must erase your Personal Data to comply with any applicable law.

Right to object:

  • You have the right to object to our handling of Personal Data as set out at paragraph 3 of this Privacy Policy, or for the purpose of direct marketing. We will stop upon your request unless we have compelling grounds as to why our use of your Personal Data should continue.

13. Third Parties

Our site may, from time to time, contain links to and from the websites of third party networks, advertisers and affiliates. If you follow a link to any of these websites, please note that these websites have their own privacy policies and that we do not accept any responsibility or liability for your access to these websites. Third parties may also use cookies which we have no control over. Please check their individual privacy policies for more information on how your personal data will be handled by these websites.

Additional Terms

14. Cross-Border Data Transfers

We store and use your data outside your country.

We process data both inside and outside of Vietnam and rely on legally-provided mechanisms to lawfully transfer data across borders. Countries where we process data may have laws which are different from, and potentially not as protective as, the laws of your own country.

15. Communications

We contact you and enable communications between Members. We offer settings to control what messages you receive and how often you receive some types of messages.

We will contact you through email, mobile phone, notices posted on our websites or apps, messages to your LinkPower inbox, and other ways through our Services, including text messages and push notifications. We will send you messages about the availability of our Services, security, or other service-related issues. We also send messages about how to use our Services, network updates, reminders, job suggestions and promotional messages from us and our partners. You may change your communication preferences at any time. Please be aware that you cannot opt out of receiving service messages from us, including security and legal notices.

We also enable communications between you and others through our Services, including for example invitations, groups and messages between connections.

16. Advertising

We serve you tailored ads both on and off our Services. We offer you choices regarding personalized ads, but you cannot opt-out of seeing other ads.

We target (and measure the performance of) ads to Members, Visitors and others both on and off our Services directly or through a variety of partners, using the following data, whether separately or combined:

  • Data from advertising technologies on and off our Services, pixels, ad tags, cookies, and device identifiers;

  • Member-provided information;

  • Data from your use of our Services;

  • Information from advertising partners, vendors and publishers.

We will show you ads called sponsored content which look similar to non-sponsored content, except that they are labeled as advertising (e.g., as “ad” or “sponsored”).

17. Ad Choices

We adhere to self-regulatory principles for interest-based advertising and participate in industry opt-outs from such ads. This does not opt you out of receiving advertising; you will continue to get other ads by advertisers not listed with these self regulatory tools. You can also opt-out specifically from our uses of certain categories of data to show you more relevant ads.

18. Marketing

We promote our Services to you and others. In addition to advertising our Services, we use Members’ data and content for invitations and communications promoting membership and network growth, engagement and our Services.

19. Direct Marketing

We currently do not share personal data with third parties for their direct marketing purposes without your permission.

20. Developing Services and Research

We develop our Services and conduct research.

We use data, including public feedback, to conduct research and development for our Services in order to provide you and others with a better, more intuitive and personalized experience, and drive membership growth and engagement on our Services.

21. Surveys

Polls and surveys are conducted by us and others through our Services. You are not obligated to respond to polls or surveys, and you have choices about the information you provide. You may opt-out of survey invitations.

22. Insights That Do Not Identify You

We use your data to produce and share insights that do not identify you. For example, we may use your data to generate statistics about our members, their profession or industry, to calculate ad impressions served or clicked on, or to publish visitor demographics for a Service or create demographic workforce insights.

23. Security and Investigations

We use data for security, fraud prevention and investigations. We use your data (including your communications) for security purposes or to prevent or investigate possible fraud or other violations of our User Agreement and/or attempts to harm our Members, Visitors or others.

24. Legal Disclosures

We may need to share your data when we believe it’s required by law or to help protect the rights and safety of you, us or others.

It is possible that we will need to disclose information about you when required by law, subpoena, or other legal process or if we have a good faith belief that disclosure is reasonably necessary to (1) investigate, prevent or take action regarding suspected or actual illegal activities or to assist government enforcement agencies; (2) enforce our agreements with you; (3) investigate and defend ourselves against any third-party claims or allegations; (4) protect the security or integrity of our Services (such as by sharing with companies facing similar threats); or (5) exercise or protect the rights and safety of LinkPower, our Members, personnel or others. We attempt to notify Members about legal demands for their personal data when appropriate in our judgment, unless prohibited by law or court order or when the request is an emergency. We may dispute such demands when we believe, in our discretion, that the requests are overbroad, vague or lack proper authority, but we do not promise to challenge every demand.

25. Limits on liability

We work hard to provide the best Products we can and to specify clear guidelines for everyone who uses them. Our Products, however, are provided "As is," and to the extent permissible by law, we make no guarantees that they always will be safe, secure, or error-free, or that they will function without disruptions, delays, or imperfections. To the extent permitted by law, we also disclaim all warranties, whether express or implied, including the implied warranties of merchantability, fitness for a particular purpose, title and non-infringement. We do not control or direct what people and others do or say, and we are not responsible for their actions or conduct (whether online or offline) or any content that they share (including offensive, inappropriate, obscene, unlawful and other objectionable content).

We cannot predict when issues may arise with our Products. Accordingly, our liability shall be limited to the fullest extent permitted by applicable law. To the fullest extent permitted by applicable law, under no circumstance will we be liable to you for any lost profits, revenues, information, or data, or consequential, special, indirect, exemplary, punitive or incidental damages arising out of or related to these Terms of Use (however caused and on any theory of liability, including negligence), even if we have been advised of the possibility of such damages.

26. Disputes

We try to provide clear rules so that we can limit or hopefully avoid disputes between you and us. If a dispute does arise, however, it's useful to know upfront where it can be resolved and what laws will apply.

If you are a consumer, the laws of the country in which you reside will apply to any claim, cause of action or dispute that you have against us that arises out of or relates to these Terms of Use, and you may resolve your claim in any competent court in that country that has jurisdiction over the claim. In all other cases, and for any claim, cause of action or dispute that LinkPower files against you, you and LinkPower agree that any such claim, cause of action or dispute must be resolved exclusively according to Vietnamese law.

27. Contact Information

We welcome any questions, comments and requests regarding this Privacy Policy. Please address them to info@linkpower.eco.

Community Guidelines

Thank you for using LinkPower. This list of “Dos and Don’ts” limit what you can and cannot do on our Services.


You agree that you will:

  • Comply with all applicable laws, including, without limitation, privacy laws, intellectual property laws, anti-spam laws, export control laws, tax laws, and regulatory requirements;

  • Provide accurate information to us and keep it updated;

  • Use your real name on your profile; and

  • Use the Services in a professional manner.


You agree that you will not:

  • Create a false identity on LinkPower, misrepresent your identity, create a Member profile for anyone other than yourself (a real person), or use or attempt to use another’s account;

  • Engage in any act of propaganda, sabotage and distortion of the government, political institutions, and State policies. In case of discovery, not only will the account be deleted, but we can also provide that user's information to the authorities for legal action;

  • Discuss political issues, religious discrimination, or ethnic discrimination;

  • Develop, support or use software, devices, scripts, robots or any other means or processes (including crawlers, browser plugins and add-ons or any other technology) to scrape the Services or otherwise copy profiles and other data from the Services;

  • Override any security feature or bypass or circumvent any access controls or use limits of the Service (such as caps on keyword searches or profile views);

  • Copy, use, disclose or distribute any information obtained from the Services, whether directly or through third parties (such as search engines), without the consent of LinkPower;

  • Disclose information that you do not have the consent to disclose, such as confidential information of others;

  • Violate the intellectual property rights of others, including copyrights, patents, trademarks, trade secrets or other proprietary rights.

  • Violate the intellectual property or other rights of LinkPower, including, without limitation, (i) copying or distributing our learning videos or other materials or (ii) copying or distributing our technology, unless it is released under open source licenses; (iii) using the word “LinkPower” or our logos in any business name, email, or URL except as provided in the Brand Guidelines;

  • Post anything that contains software viruses, worms, or any other harmful code;

  • Reverse engineer, disassemble, decipher or otherwise attempt to derive the source code for the Services or any related technology that is not open source;

  • Imply or state that you are affiliated with or endorsed by LinkPower without our express consent;

  • Use bots or other automated methods to access the Services, add or download contacts, send or redirect messages;

  • Monitor the Services’ availability, performance or functionality for any competitive purpose;

  • Engage in “framing,” “mirroring,” or otherwise simulating the appearance or function of the Services;

  • Overlay or otherwise modify the Services or their appearance (such as by inserting elements into the Services or removing, covering, or obscuring an advertisement included on the Services); and/or

  • Interfere with the operation of, or place an unreasonable load on, the Services (e.g., spam, denial of service attack, viruses, gaming algorithms).

Tell us if you see abusive content

If you see something you believe may violate our policies, whether in profiles, posts, messages, comments, or anywhere else, please report it to us. Please use the reporting tools responsibly and only for their intended purposes.

The above guidelines apply to all members. Depending on the severity of violation, we may limit the visibility of certain content, label it, or remove it entirely. Repeated or egregious offenses will result in account restriction. If you believe action taken on your content or your account was in error, you can submit an appeal.