New Scientist: The rapid warming and melting of the Arctic is only half our fault. While our greenhouse gas emissions are clearly a factor, the record melts of the past few decades are partly the result of huge waves of warm air emanating from the Pacific Ocean.
The same region of the Pacific seems to be behind both the Arctic warming and the global warming "hiatus" of the last decade. That means we could be in for something unexpected: when global warming speeds up again, the melting of the Arctic might slow...