The massive shelves of ice that ring Antarctica have been shrinking over the past couple of decades, and that could have grave implications for sea level rise. It’s not the ice shelves themselves that pose a problem: they’re mostly afloat, so when they melt or dump massive icebergs, it doesn’t affect water levels any more than melting ice cubesMore
Michael Lemonick is a writer at large for Climate Central. Prior to that, he covered science and the environment for TIME magazine for nearly 21 years, where he wrote more than 50 cover stories, and has also written for Discover, Scientific American, Wired, New Scientist, The Washington Post and National Geographic. Lemonick is the author of six books, and a cover story for TIME was featured in the anthology “Best American Science and Nature Writing 2007.” He has taught science and environmental journalism at Princeton, Columbia, Johns Hopkins and New York Universities. He holds a Master of Science in Journalism from Columbia University.