The big melt: Sea ice hits record lows at North and South Poles
Sea ice levels in both the Arctic and the Antarctic have hit record lows, NASA climate scientists report. The northern record, while bleak, isn’t all that surprising – Arctic sea ice has been on a consistent decline for years. But until recently, Antarctic sea ice was actually expanding. Climate change skeptics have often pointed to ice gain in the Southern Hemisphere, which hit record highs between 2012 and 2014, but now that trend appears to be reversing.