Incredible. If they're right, this is really bad news. Just recently the "alarmist" IPCC predicted that this could happen in 2050-2100. The Arctic Ocean with its reflective ice has acted as cooler; if the ice is gone, the ocean becomes a heater because dark ocean absorbs solar energy effectively. Warmer Arctic may in turn change the jet streams in the northern hemisphere, which leads to major changes in rain patterns. Droughts, floods, and such.

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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool.
-- Richard Feynman