
Some of Earth’s largest climate systems may collapse not with a bang, but with a whimper. Surprisingly, experiments with magnets are helping us understand how.
We now widely accept that greenhouse gases and the way we use natural resources are putting enormous stress on the world’s climate and ecosystems. It’s also well known that even small increases in stress can push Earth systems, like rainforests, ice sheets or ocean currents, past tipping points, leading to major and often irreversible changes.