The Warming Earth - The Warmest Winter

The northern hemisphere winter , December 2014 to February 2015, was the warmest in the records, according to NASA.
The average temperature, taken for northern land and ocean surfaces, was 
1.42°F (0.79°C) above the 20th century average. 

This was the highest for December, January and February in the 1880–2015 record, passing the previous record of 2007 by 0.05°F (0.03°C).

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