Planetary boundaries in brief: Planetary boundaries are nine vital Earth systems with limits within which humanity can operate safely. The framework was published in 2009 by a research team led by Johan Rockström. According to the Planetary Health Check published in September 2026, seven of the nine boundaries have been crossed, and all seven are getting worse.
What are planetary boundaries?
Planetary boundaries are nine Earth-system thresholds within which humanity can operate safely. The framework was published in 2009 by a research team at the Stockholm Resilience Centre led by Johan Rockström. Today the state of the boundaries is assessed every year by more than 60 scientists at the Planetary Boundaries Science Lab of the Potsdam Institute for Climate Impact Research (PIK).
The boundaries are not cliff edges where collapse begins immediately. They describe a safe operating space. The further a boundary is crossed, the greater the risk of large-scale and hard-to-reverse change, which also undermines the conditions for the economy.
The nine planetary boundaries and their state in 2026
| Boundary | What it measures | State 2026 | What it means for a company |
|---|---|---|---|
| Climate change | atmospheric CO2 concentration and radiative forcing | crossed, high risk | emission reduction obligations, carbon pricing, physical climate risks in the supply chain |
| Biosphere integrity | genetic diversity and the functioning of ecosystems | crossed, high risk | assessing nature dependencies (TNFD), nature loss in raw material chains |
| Biogeochemical flows | nitrogen and phosphorus cycles | crossed, high risk | fertilisers and nutrient run-off: agriculture, food and forest value chains |
| Novel entities | human-made chemicals, plastics and other new substances in the environment | crossed, high risk | chemicals and plastics regulation, product liability, material choices |
| Land system change | share of original forest cover | crossed, increasing risk | EU Deforestation Regulation (EUDR), sourcing traceability |
| Freshwater change | surface and groundwater, and soil moisture | crossed, increasing risk | water risks in operations and the supply chain, especially in water-stressed regions |
| Ocean acidification | the chemical state of seawater | crossed for the first time in 2025, increasing risk | fisheries and marine food chains; driven mainly by fossil fuel emissions |
| Ozone depletion | the stratospheric ozone layer | safe, improved | proof that international regulation (the Montreal Protocol) works |
| Atmospheric aerosols | fine particles in the atmosphere | safe globally, regional problems | air quality and health impacts in production regions |
Source: Planetary Health Check 2026, Potsdam Institute for Climate Impact Research (PIK).
Why are planetary boundaries a business matter?
The World Economic Forum estimates that more than half of global GDP is moderately or highly dependent on nature. Each crossed boundary increases business risk in three ways:
- Physical risks: extreme weather, water scarcity and raw material availability directly affect operations and supply chains.
- Transition risks: regulation, pricing and customer requirements change as societies try to return to safe limits.
- Financial risks: investors and lenders increasingly assess companies' relationship with nature and climate. For example, metrics developed by the World Benchmarking Alliance and Sitra look at company business in relation to planetary boundaries.
At the same time, the boundaries show where the opportunities are. Companies whose products and services help return to the safe zone, for example through nutrient recycling, chemical substitution or restoration, benefit from growing demand.
Planetary boundaries and doughnut economics
Kate Raworth's doughnut economics builds on planetary boundaries. The outer ring of the doughnut is the ecological ceiling and the inner ring is the social foundation, such as food, health and education. The "safe and just space" of the doughnut is where human needs are met within planetary boundaries.
How can a company use planetary boundaries?
- Materiality assessment: identify which boundaries your operations and supply chain affect and depend on most. For most companies there are two to four.
- Risk analysis: assess the physical, transition and financial risks for each material boundary.
- Targets: set science-based targets. For climate there is the SBTi framework and for nature SBTN.
- Business model: identify products and services that help return within the boundaries. This is where the shift towards regenerative growth begins.
For example, S Group calculated the nature footprint of its operations and Metsä Group has built a regenerative forestry metric system. Both connect directly to the biosphere integrity and land system boundaries.
Frequently asked questions
What are planetary boundaries?
Planetary boundaries are nine thresholds for vital Earth systems within which humanity can operate safely. Crossing them increases the risk of large-scale and hard-to-reverse environmental change.
How many planetary boundaries have been crossed?
Seven of nine, according to the Planetary Health Check 2026. In 2023 the number was six. Ocean acidification was assessed as crossed for the first time in 2025.
Who developed the planetary boundaries framework?
The framework was published in 2009 by an international research team led by Johan Rockström at the Stockholm Resilience Centre. Today the state of the boundaries is updated every year by the Planetary Boundaries Science Lab at the Potsdam Institute for Climate Impact Research (PIK).
Which boundaries are still within the safe zone?
Ozone depletion and atmospheric aerosols. Both have improved over the last decade, which shows that international action works. For aerosols, scientists caution that levels can still be unsafe in some regions.
What is the difference between planetary boundaries and doughnut economics?
Planetary boundaries describe the ecological ceiling. Doughnut economics adds a social foundation: a minimum level below which no one's living conditions should fall.
Related concepts
- Doughnut economics, which sits on top of planetary boundaries.
- Nature-positive business, a way of operating within planetary boundaries.
- Regenerative growth, which seeks to return us to safe boundaries.
- Regenerative economy, the economic counterpart to planetary boundaries.
Sources
- Planetary Boundaries Science (2026). Planetary Health Check 2026. Potsdam Institute for Climate Impact Research.
- Planetary Boundaries Science (2025). Planetary Health Check 2025. Potsdam Institute for Climate Impact Research.
- Richardson, K. et al. (2023). Earth beyond six of nine planetary boundaries. Science Advances 9(37).
- Rockström, J. et al. (2009). A safe operating space for humanity. Nature 461, 472–475.
- World Economic Forum (2020). Nature Risk Rising.
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