This GIF Shows the Start of Antarctica's Irreversible Ice Sheet Collapse

Yesterday NASA revealed the ominous news that the West Antarctic Ice Sheet had begun its inevitable, unstoppable collapse—heralding a sea level rise that's destined to be catastrophic. Now, they've uploaded a time-lapse that shows its early beginnings in a small section of western Antarctica.


What you see above is the Amundsen Sea region, in western Antarctica, which is just a small section of the ice sheet itself. But in 1981, a researched studying the ice disintegration described it as a danger zone—the "weak underbelly of the West Antarctic ice sheet." It's the first thing to go, explains NASA, and here's why it's so important:

In addition to the ice sheet being grounded below sea level, there are three main reasons. First, the glaciers here lack very large ice shelves to stem ice flow. Second, they aren't "pinned" by obstructions in their beds except in a few small places, unlike the Ronne and Ross shelves which are pinned down by large islands. Third, as first observed in the 1990s, the area is vulnerable to a regional ocean current, ushered in by the shape of the sea floor and the proximity of the circumpolar deep current. This current delivers warm water to grounding lines and the undersides of ice shelves in the region.

It may only be a small portion, but if it melts completely, it will raise global sea levels upwards of four feet. On the other hand, if the entire ice sheet melted, it would raise levels by 16 feet. Either way, things don't look good for coastal cities. [NASA JPL]


Buzz Mega

What's not said in current press releases is that a series of dire future press releases is planned, in order to "break the bad news to the world" incrementally.

September, 2014: An announcement will reveal that sea level will be 400% higher than previously announced levels, and will occur fifty years earlier than previously estimated.

December, 2014: Breaking news—global warming will receive a new boost when the Pacific Ring Of Fire starts a hundred-year schedule of open volcanism.

March, 2015: NASA will release images of glacial melting. The good news is that much of Greenland will actually become green.

July, 2015: Yellowstone erupts, joining the PROF. Atmospheric temperature rises 6°C.

November, 2015: A band around the equator from 5° north to 7° south latitude becomes uninhabitable.

April, 2016: All those crazy Florida news stories come to an abrupt halt.