GEO-7 says the world is rapidly approaching a series of climate-related crises from which there may be no return. The Greenland and Western Antarctic ice sheets could collapse, causing sea levels to rise 10 metres. Thawing permafrost could release massive amounts of methane, a potent greenhouse gas, supercharging warming. 

The Amazon rainforest may wither into a savannah, depriving the planet of one of its most important carbon sinks. Nearly every warm-water coral could disappear, devastating undersea ecosystems and threatening fisheries around the world. 

Even ocean currents and the Jet Stream could be affected, throwing the climate into disarray.

Information taken from the UN Environment Programme Global Environment Outlook (GEO-7), launched in December 2025, which explores everything from the health of coral reefs to the status of the ozone layer