April 28, 2016

Every summer, Greenland's ice sheet melts when temperatures warm up. This year, however, saw the start of the ice melt season begin in April, much earlier than normal. 

March 11, 2016

For the third winter in a row, temperatures were well above normal for much of Alaska, leaving Alaskans to wonder, where's winter?

February 24, 2015

A stalled atmospheric set-up has made Boston and surrounding areas in the Northeast the most popular truck stop for storms travelling the atmospheric highway known as the jet stream. And stop they have, like a caravan of tractor-trailers idling in a rest stop parking lot.

February 26, 2014

Persistent cold temperatures in the Midwest this winter almost completely frozen over many of the Great Lakes. The Great Lakes Environmental Research Laboratory (GLERL) reported that 88 percent of the Great Lakes were frozen as of mid-February.

January 22, 2014

Among the questions triggered by the entrapment of a Russian ship near Antarctica on Christmas Eve were whether the ice conditions were out of the ordinary, and, if so, whether long-term climate change was playing a role.

January 8, 2014

Meteorologists have known for years that the pattern of the polar vortex determines how much cold air escapes from the Arctic and makes its way to the U.S. during the winter. Climate scientists are wondering if a warmer Arctic could explain its odd behavior in recent years.

August 27, 2012

Arctic sea ice extent fell to 1.58 million square miles on August 26, 2012. This was 27,000 square miles smaller than the previous record low of 1.61 million square miles set in 2007.

April 14, 2011

Arctic sea ice extent for the month of March was the second lowest in the satellite record. Ice cover at winter maximum continues to be dominated by young, thin ice.

February 8, 2011

Deep snow that fell across the Great Plains and the Northeast in late January and early February is the latest installment in the second very wintry winter in a row for the eastern U.S.