Much of the Northern Hemisphere experienced cold land surface temperatures in December 2009, but the Arctic was exceptionally warm.
Published Jan 9, 2010
In March 2013, the same meteorological phenomenon brought warm weather to the Arctic and cool air spilling into the North America, Europe, and Asia.
Published Apr 3, 2013
It was cold across the eastern part of North America, but the opposite was true in other parts of the world.
Published Dec 6, 2018
This map of the land surface temperature shows that the first week of December was exceptionally cold in northern Europe and the eastern United States.
Published Dec 17, 2010
People in eastern North America shivered through February 2015, while those in the western part of the continent experienced unusually warm weather.
Published Mar 10, 2015
If you live in the northern hemisphere, the past few weeks have been strange. In places where it should be seasonably hot, it’s just warm. In places where weather is usually mild in the summer, it has been ridiculously hot.
Published Aug 8, 2014
In December 2013, the same kink in the jet stream brought frigid cold to the continental U.S. and record heat to Alaska.
Published Dec 14, 2013
Acquired January 7, 2010, this image shows snow blanketing England, from the east to west coast. The cities of Manchester, Birmingham, and London appear as ghostly gray shapes on the icy surface.
Published Jan 8, 2010Image of the Day Land Severe Storms Human Presence Snow and Ice
Winter turned fierce in the opening weeks of 2009, and part of the reason for the cold snaps and winter storms came from big changes in the atmosphere about 20 kilometers above the Earth.
Published Feb 7, 2009
This color-coded map shows global temperatures for May 2010. Although cool conditions prevailed in some heavily populated areas, warm conditions predominated, especially near the poles.
Published Jun 25, 2010
A new report summarizes Arctic environmental conditions in 2013, including sea surface temperatures.
Published Dec 13, 2013
The culprit is a familiar one: the polar vortex.
Published Jan 29, 2019
Though the talk in much of the United States was about polar vortices and wicked cold snaps, the wider world was actually warmer than normal.
Published Mar 20, 2014
