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6 Degrees: Security Risks, Tornadoes and Earthquakes

6 Degrees: Security Risks, Tornadoes and Earthquakes

A new climate report from the Pentagon, tornado trends, earthquakes and more in this week's top climate news. … Read More

Jack Frost Not Exactly Nipping at Your Nose

Jack Frost Not Exactly Nipping at Your Nose

The mercury has already dipped below 32°F at a number of locations around the U.S. in the Rockies and Upper Midwest. It’s only a matter of time before chilly temperatures march east and south as fall turns to winter, frosting over windowpanes, lawns and leaves. But Old Man Winter and Jack Frost are getting a later and later start to their usual fro… Read More

Expanding Antarctic Sea Ice is Flooding ‘Warning Bell’

Expanding Antarctic Sea Ice is Flooding ‘Warning Bell’

The spreading sheet of sea ice around Antarctica could be viewed as a napkin being draped over a monstrous water pistol. If, that is, the gelid napkin was a self-assembling machine that could reach beneath itself, aim the squirt gun at the planet’s shorelines, and squeeze the trigger. Research suggests that the expansion of Antarctic sea ice herald… Read More

Antarctic Sea Ice Officially Hits New Record Maximum

Antarctic Sea Ice Officially Hits New Record Maximum

It’s official: Antarctic sea ice hit its annual winter maximum on Sept. 22, reaching a record area of 20.11 million square kilometers (7.76 million square miles), the National Snow and Ice Data Center announced Tuesday. That maximum extent was 1.54 million square kilometers (595,000 square miles) above the 1981 to 2010 average extent, the NSIDC… Read More

Drought Drains Already Diminished Aral Sea

Drought Drains Already Diminished Aral Sea

The Aral Sea has been dying a long, slow death. This summer, another nail was driven into its coffin. Starting in the 1950s, when Soviet authorities began programs that diverted water from its tributaries, the inland lake in Central Asia — once the fourth largest in the world, bigger than Lake Huron — has been shrinking. This summer, the eastern l… Read More

Greenland Sediment Sheds Light on Sea Level Rise

Greenland Sediment Sheds Light on Sea Level Rise

Greenland’s ice sheet is scraping rock bottom. No, it’s not hard up and in need of a loan. As ice moves from the center of the island to the sea, it’s scraping bedrock and transporting clues about just how fast the ice sheet is melting from the bottom up and what that means for sea level rise. The planet’s largest island is mostly covered in ice up… Read More

Antarctic Sea Ice Hits New Max; Continent Still Warming

Antarctic Sea Ice Hits New Max; Continent Still Warming

The donut of sea ice encircling Antarctica is hovering around its yearly winter maximum area, and there’s little question that it’s going to set a record high this year. “Antarctic sea ice in 2014 is going to set a record for sure,” said Ted Scambos, a senior scientist with the National Snow and Ice Data Center in Boulder, Colo. This end-of-sea… Read More

A Timeline of 2013 Extreme Weather and Global Warming

A Timeline of 2013 Extreme Weather and Global Warming

On Monday, the Bulletin of the American Meteolorogical Society released its annual look at extreme weather events and the role of climate change in causing them. More than 90 scientists from 14 countries compiled the report, which examined 16 separate events ranging from scorching heat to heavy rains to searing drought that occurred in 2013. Check … Read More