A nervy image. And Andrew Sullivan explains:
This is a map of global temperature anomalies for last month. Pretty uneventful until you get to the Arctic, where the feedback loops of warming, loss of ice-reflection, more warming and so on are looking scary.
Why the heavy red at the polls? Because as the white and reflective Arctic ice melts, and turns to dark blue ocean, the Earth absorbs, rather than reflects, the sun’s heat. It’s as if you painted over a white roof with dark blue paint. On sunny days, you would see a temperature spike in your house. January-May global temperatures show 2010 to be the warmest ever recorded (in 0ver 130 years of recording).