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antartica

West Antarctica Warming Three Times Faster Than Global Average, Threatening To Destabilize This Unstable Ice Sheet

December 27, 2012 by Joseph Romm
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In a finding that raises further concerns about the future contribution of Antarctica to sea level rise, a new study finds that the western part of the continent’s ice sheet is experiencing nearly twice as much warming as previously thought.[read more]

Another massive iceberg is calved in Antarctica, with implications for local ocean circulation and wildlife

March 1, 2010 by Joseph Romm
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Researchers announced last week that a giant iceberg has collided with a seaward extension of East Antarctica’s Mertz Glacier, breaking a huge chunk off of the glacier to form a second iceberg 78 km (48 miles) long, 33 to 39 km (21-24 miles) wide and 400 m (0.25 mile) thick.  A team of...[read more]

Q: How much can West Antarctica plausibly contribute to sea level rise by 2100?

April 6, 2009 by Joseph Romm

A. 3 to 5 feet — contributing to an increasingly likely total sea level rise of more than 5 feet by 2100, a rise that will be all but impossible to stop if we don’t sharply reverse CO2 emissions trends within a decade or so. West Antarctica’s collapsing ice shelves are in the news today.  This post will survey what we now know...[read more]

Antarctica and planning horizons

March 19, 2009 by Lou Grinzo

And then there are those articles I just don’t know how to interpret. A perfect example crossed my screen this morning, about new evidence that suggests Antarctic ice [is] close to melting tipping point-study: A large part of the ice covering West Antarctica could be lost if greenhouse gases in the atmosphere increase only slightly...[read more]