Wednesday, December 31, 2014

Sea Ice or Ice Shelves?

There is an community of people who are ardently opposed to the whole idea of Greenhouse Warming.  Like a modern version of the Athenian sophists, they continually trumpet only those bits of information that they believe undermine the idea of global warming 

The most recent blast from the anti global warming crowd involves crowing over what they claim are record extents of sea ice.  Given that Arctic Ocean sea ice is shrinking, how is it possible that the world is reaching record levels of sea ice?  And why is this happening during the Antarctic summer?

The answer lies in the Antarctic glaciers themselves.   Weather dats shows thst global warming is producing ever warmerAntarctic  summers.   Glaciers in Antarctica turn into a special form of sea ice known as ice shelves as they flow into sea, and the size of the ice shelves is controlled by the VELOCITY at which  the eAntarctic  glaciers when they reach the sea.   Warmer temperatures duringAntarctic  summers produces faster ice flow which transfers more glacier mass into the ice shelves.  

Yes the Antarctic ice shelves are covering more area then they did in the past.  But this is happening during Antarctic SUMMERS and is actually caused by global warming. 

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