Immersive
Nine boundaries, one planet
The Planetary Health Check 2025 tracks nine Earth-system processes. The radial diagram shows control variables relative to the safe ring — and how far we have pushed past it.
overview
Seven of nine breached
As of PHC 2025, seven boundaries are transgressed. Aerosol loading and ozone remain within the safe space — rare proof that coordinated policy can work.
climate
Climate change
Atmospheric CO₂ sits at 423 ppm — far above the 350 ppm boundary — and radiative forcing is about twice the high-risk threshold. The Arctic warms roughly three times faster than the global average.
biosphere
Biosphere integrity
Extinction rates sit far above the safe band, and humans now appropriate about 30% of net primary production — triple the 10% boundary. Tropical frontiers from the Amazon to Borneo illustrate the pressure.
particles-earth
Earth as a system
Cut into the particles surface — a Lab-gated morph that dissolves orbit into landscape shapes. Spectacle stays behind VisualizationPort; Discover still defaults to globe and map.
freshwater
Freshwater change
More than a fifth of land now shows abnormal streamflow and soil-moisture deviations — roughly twice the pre-industrial baseline. Basins such as the Indo-Gangetic Plain illustrate the stress.
ocean
Ocean acidification
Surface aragonite saturation has fallen just past the revised boundary. For the first time, PHC 2025 classifies ocean acidification as transgressed — the seventh breached limit.
ozone
Ozone — a rare recovery
Stratospheric ozone is stable and slowly recovering thanks to the Montreal Protocol. Hemispheric aerosol differences are also shrinking. These are leverage points: science and policy can restore a boundary.
synthesis
Still within reach
We are at the upper edge of the planetary boundary safe zone — but still within reach of a safe future. The diagram is a reading aid; the evidence lives in the PHC report and peer-reviewed literature.
Observe
Return to orbit
Stories choreograph the world shell — they do not replace it. Open Discover to inspect places and actors on the same VisualizationPort.