The heat in the Arctic that summer was record-breaking, and so was the melt. New lows were set for the extent of Arctic sea-ice coverage. In Nuuk, the Greenlandic capital, the temperature hit 24°C. Meteorologists in Denmark rechecked their measurements. No mistake. For the past decade, the ice cap had been losing mass at twice the rate of the previous century. That year it also began melting a month earlier than usual, and the flow rates on the meltwater rivers of the glaciers reached exceptional speeds. The glaciologists checked their models. No mistake.
