Less Ice or More? What You Need to Know About Antarctica’s Meltdown

In Antarctica, glaciers are sloshing seaward at an ever faster clip, ocean waters are warming, and, perhaps counterintuitively, sea ice is expanding, according to a batch of recent studies that paint a stark picture of climate change unfolding at the far southern reaches of the globe. For people in North America, the distant events raise the specter of higher seas sooner than climate models suggest.

Here are answers to key questions about what’s happening on that cold continent.