A haze of ice crystals in the air created a halo around the low sun as three snowmobiles thundered onto the sea ice on a February morning in far northern Canada. Wisps of snow blew across the white expanse. It was –26 degrees Celsius as we left Cambridge Bay, an Inuit village in a vast archipelago of treeless islands and ice-choked channels. This temperature was relatively warm—six degrees C above average. The winter had been the mildest in 75 years. The sea ice covering the Arctic Ocean was at its smallest extent on record. Scientists predict that within the next 15 years this ice cap will disappear in summer for the first time in millennia, accelerating global warming. The U.K. company Real Ice, whose heavily bundled team was bouncing around on the other two snowmobiles ahead of mine, hopes to prevent that outcome with an effort that has been called extremely ambitious, insane or even dangerous.
Alec Luhn 