It's true. Earth just had its warmest December-January on record, according to the scientists from the National Oceanic and Atmospheric Administration. How can that be? Details here.

Climate scientists define winter as the months of December, January and February in the Northern Hemisphere and summer in the Southern Hemisphere. 90% of the world's population lives in the Northern Hemisphere.

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According to a recent story in USA Today, scientists from The National Oceanic and Atmospheric Administration found that the Northern Hemisphere had its warmest winter on record and the Southern Hemisphere had its 4th-warmest summer.

February itself was the second-warmest February on record. Hard to believe if you live in the Stateline, Illinois or Wisconsin this past Winter.

Temperatures for December–February beat the previous record of 2007 by 0.05 degrees, NOAA's National Climatic Data Center reported. Global temperature records go back to 1880.

One of the planet's only land areas that had a cooler-than-average winter was eastern North America, which includes the eastern U.S. and eastern Canada.

Areas that saw record warmth include the western U.S. and part of central Siberia and eastern Mongolia.