Previously, scientists had estimated that climate change would lead to glacier melts and sea levels rising by a few centimeters at century's end. Now, a new international study offers a more dramatic picture of our changing coastlines.
Climate change has transformed the face of the Earth for billions of years. At one time, Antarctica was a tropical paradise. And for much of the planet's history there was almost no land at all, and life made its home in a vast, planet-wrapping sea. Now we're seeing the first signs that the planet might be headed back to a more watery version of Earth.