National Geographic: Climate scientists have cracked the mystery of why Antarctic sea ice has managed to grow despite global warming–but the results suggest the trend may rapidly reverse, a new study says. Satellite data show that, over the past 30 years, Arctic sea ice has declined while Antarctic sea ice has mysteriously expanded, according to study leader Jiping Liu, a research scientist at Georgia Tech in Atlanta. “We’ve seen this paradox, but we don’t know why–here we gave an explanation,” …