The Planetary Health Check (PHC) provides an annual assessment of the state of the Planet. It is structured around the Planetary Boundaries: the nine critical processes that regulate stability, resilience, and the conditions that support life on Earth. For each boundary, one or two indicators, known as control variables, are used to assess its status.

PLANETARY HEALTH CHECK 2026

A Scientific Assessment of the State of Our Planet

These show whether conditions remain within the Safe Operating Space – the range in which the risk of destabilizing the Planet remains low. Beyond a boundary lies the Zone of Increasing Risk, followed by the High-Risk Zone, where the risk of large-scale and potentially irreversible changes becomes high. The 2026 Planetary Health Check finds that seven of the nine Planetary Boundaries are transgressed, and trends for all seven continue to point in the wrong direction, indicating further deterioration in the conditions that support long-term planetary stability.

Seven Out of Nine Planetary Boundaries are Transgressed.

• Climate Change – strongly transgressed. Climate Change refers to the disruption of Earth’s energy balance, driven mainly by greenhouse-gas emissions from fossil fuels and land- use change, alongside other human influences on Earth’s energy balance, including aerosols. Atmospheric carbon dioxide and human-caused radiative forcing, the variables used to measure Climate Change in the Planetary Boundaries framework, have both exceeded their safe levels. The consequences are clearly visible as rising temperatures, extreme weather, ecosystem damage, sea-level rise, and growing risks to health, food, water, infrastructure, and economic stabil- ity. Continued warming also increases the likelihood of self-reinforcing changes and potentially irreversible tipping points.

• Change in Biosphere Integrity – strongly transgressed. This describes the diversity and functioning of life across land, freshwater, and ocean ecosystems, which are being degraded by habi- tat conversion, resource extraction, pollution, climate change, and numerous other stressors. In the Planetary Boundaries framework, Change in Biosphere Integrity is measured through species extinction rates, as well as the share of potential natural plant productivity appropriated by humans; both measures are in the High Risk Zone, far beyond safe levels. Further decline could weaken nature’s capacity to regulate carbon, water, nutrients, soils, and climate, undermining food security, clean water, livelihoods, and ecosystem resilience while increasing the risk of cascading Earth system change.

• Land System Change – transgressed. Land System Change is driven primarily by the loss and degradation of natural landscapes, especially forests, through agricultural expansion, logging, infrastructure development, and, increasingly, climate-related heat, drought, fire, and pest outbreaks. Remaining forest cover across the assessed forest biomes has fallen below the safe level, reducing carbon storage, moisture recycling, soil protection, biodiversity, and regional cooling. Continued forest loss could intensify water stress, wildfire and flood risks, and raises the possibility of large-scale ecosystem shifts, including in the Amazon.

• Freshwater Change – transgressed. This boundary covers changes to both freshwater flows in rivers, lakes, reservoirs, and groundwater, and water stored in soils and available to plants. Human-induced disturbances to both measures are beyond safe levels, increasing droughts, floods, ecosystem stress, groundwater depletion, crop losses, and pressure on drinking water and energy systems. Further disruption could weaken carbon storage, increase fire and flood risks, and contribute to large-scale ecosystem decline, as well as threatening drinking water availability and food production.

• Modification of Biogeochemical Flows – strongly transgressed. Human activity has greatly increased nitrogen and phosphorus flows, mainly through fertilizer use. Both nutrient cycles are in the High-Risk Zone, far beyond safe levels, causing polluted water, algal blooms, oxygen-depleted dead zones, biodiversity loss, and nitrogen-related air pollution. These disruptions damage freshwater and marine ecosystems and create risks for fisheries, drinking water, food systems, and health. Because excess nutrients can remain in soils and groundwater for decades, impacts may persist long after inputs are reduced.

• Ocean Acidification – transgressed. Ocean acidification occurs as the ocean absorbs human-produced carbon dioxide, changing sea- water chemistry and making it harder for many organisms to build and maintain shells and skeletons. The global boundary has now been transgressed, with particularly strong changes in the Arctic and Southern Oceans. Shell damage and dissolution are already being observed in pteropods, small planktonic snails that form an important part of marine food webs, while deep-water corals are increasingly exposed to corrosive conditions. Continued acidification could disrupt marine food webs, fisheries, coastal livelihoods, and biodiversity, while also weakening the ocean’s carbon uptake and its role in climate regulation.

• Atmospheric Aerosol Loading – within the Safe Operating Space globally, but with significant regional transgression. Aerosols are airborne particles from fossil fuel combustion, industry, transport, biomass burning, dust, and smoke that influence sunlight, clouds, rainfall, and atmospheric circulation. The global measure remains within safe limits and has generally improved in recent decades. However, aerosol loading over South Asia exceeds the proposed regional boundary and may disrupt monsoon rainfall. Aerosols also cause severe health impacts, reduce crop productivity, and complicate climate policy because some particles temporarily mask greenhouse-gas warming.

• Stratospheric Ozone Depletion – within the Safe Operating Space. The stratospheric ozone layer protects life from harmful ultraviolet radiation and has been severely damaged by long-lived human-made chemicals, such as chlorofluorocarbons. International controls have enabled substantial recovery, bringing the global bound- ary back within safe limits, although ozone levels remain below mid-20th-century conditions and recent recovery may have slowed. Incomplete recovery or emerging pressures could increase risks to human health, crops, ecosystems, and atmospheric circulation.

• Introduction of Novel Entities – strongly transgressed. Novel Entities comprise a broad and diverse range of chemicals, materials and other substances associated with human activity, including synthetic chemicals, plastics, pesticides and PFASs, which are released into the Earth system faster than they can be adequately tested, monitored, or regulated. The boundary is transgressed because substances continue to enter the environment without adequate safety assessment while their production, diversity, and release grow rapidly. Many can persist, spread globally, accumulate in organisms, and cause long-lasting or irreversible harm to ecosystems, food and water systems, human health, and other Planetary Boundary processes.

For most of the past 11,700 years, humanity developed under the relatively stable conditions of the Holocene. This period supported the emergence of agriculture, cities, and complex societies. Since the mid-20th century, however, rapid growth in population, resource and energy use, land conversion, and pollution has transformed humanity into a force capable of altering the Planet at a global scale – a shift often described as the Great Acceleration and the onset of the Anthropocene (CH. 1.1).

The consequences are becoming increasingly visible. Global warming has accelerated in recent years, while many extreme events such as heatwaves, floods, droughts, and storms are becoming more frequent and more intense, causing growing harm to ecosystems and human populations alike. At the same time, biodiversity continues to decline, freshwater systems are increasingly disrupted, pollution is accumulating across land and ocean, and nutrient overload is degrading ecosystems and water quality. Signs of weakening land carbon sinks further raise concerns that forests and other ecosystems may lose part of their capacity to absorb human- caused emissions and could increasingly become sources of carbon. Together, these developments show that the Planet’s capacity to buffer human pressures cannot be taken for granted.

These pressures span the nine Planetary Boundaries and do not act in isolation. Climate, ecosystems, freshwater, land, oceans, and nutrient cycles interact through complex feedbacks, so damage in one area can weaken resilience elsewhere and increase the risk of self-reinforcing or irreversible change (CHS. 2.2 AND 3.2). The 2026 report places particular focus on three examples of these wider risks: the fragility of the land carbon sink (CH. 4.1); the health and protection of the seafloor in the face of destructive fishing practices and prospective deep-sea mining (CH. 4.2); and the potentially incalculable risks posed by pollution with human-made chemicals and materials (Novel Entities), including effects that may remain unknown until damage is wide- spread (CH. 4.3).

Taken together, the 2026 assessment shows broad and increasing pressure across the Earth system. Seven of the nine Planetary Boundaries are transgressed, several control variables lie in the High-Risk Zone, and all seven transgressed boundaries show worsening trends. The farther and longer human pressures move beyond the boundaries, the greater the risk of large-scale and potentially irre- versible Earth-system change. Earth’s biological, physical, and chemical resilience still provides an opportunity to reduce these risks and move back towards the Safe Operating Space, but accelerating warming and signs of weakening natural buffers show that this window is closing rapidly.

READ MORE: https://publications.pik-potsdam.de/rest/items/item_35009/component/file_35022/content

PLEASE VISIT:

YOURDEMOCRACY.NET RECORDS HISTORY AS IT SHOULD BE — NOT AS THE WESTERN MEDIA WRONGLY REPORTS IT — SINCE 2005.

         Gus Leonisky

         POLITICAL CARTOONIST SINCE 1951.

         RABID ATHEIST.

         WELCOME TO THIS INSANE WORLD….