Climate change: Consequences of Warming in the Arctic Temperatures in the North Pole are heating twice as fast as the global average. A drive floats is melting sea ice. When destroyed, it exposes deep blue waters that absorb more solar energy than white ice. In turn, this accelerates the melting: a classic positive feedback loop. Ice is reduced annually to a minimum in September. The lowest record was set in 2012; 2007 and 2016 are the second joint. This year is expected to be on the same level with them.