A Chilean lake that mysteriously went missing between March and May was a casualty of global warming, says the lead scientist investigating its disappearance. Melting glaciers created a stream of water that cracked one of the lake's ice walls, sending the water pouring into an adjoining fjord and, eventually, out to sea.
"This would not be happening if the temperature had not increased," says Andres Rivera, the glaciologist who led the research. The lake, in Chile's Patagonia region, made international headlines late last month when scientists realized it had disappeared. (Read more Chile stories.)