The Silicon Valley-based organisation proposed the release of tiny silica particles over parts of the Arctic Ocean, which would in theory reflect sunlight from the surface and cool down melting ice.
Here's why this limit matters and what crossing it could mean for life on Earth and in Switzerland, a country already heavily affected by rising temperatures.
Add articles to your saved list and come back to them any time. Why is a remote glacier in Antarctica that contains enough water to raise global sea levels by 1.5 metres melting twice as fast on ...
Like the glaciers that feed them, ice shelves are immense. Yet the ocean processes that control basal melting, and the fate of the entire Antarctic ice sheet, occur on the scale of millimetres.