The extent of the arctic summer ice cap is a key indicator of our warming world. And it looks as though it is shrinking faster than many anticipated. Satellite evidence reveals that the 2012 melt has set a new record, leaving the ice sheet covering less than half the area it occupied 40 years ago. The arctic could be ice-free in the summer in as little as 20 years.
Are there really still any ’skeptics’ out there?