The ‘Doomsday Glacier’ Could Flood the Earth. Can a 50-Mile Wall Stop It?
Scientists have long opposed polar geoengineering. Some now believe it will be necessary.
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Michael George Cruise Ships Aren’t Ready for Instant Tsunamis
Landslides can cause sudden, powerful tsunamis—and no one really knows how to navigate them.
A Devastating Toxin Is Bubbling Up From the Permafrost
Rising temperatures are releasing mercury into the Arctic.
Don Johnson NC / Alamy A ‘Carbon Bomb’ Lurks in America’s Marshlands
Salt marshes could flip from climate friend to climate foe.
The Atlantic; Ronald Wilson / Getty
