so, you read one report that says it's happening about half as fast as several other studies have predicted and suddenly global warming is bunk.
Holy Leap of Logic Batman! Maybe you should read the actual article cited in the blurb: "The differences between the work by Wu and colleagues4 and earlier studies may reflect errors in present deglaciation models with respect to the ice-load history and response of the EarthÂ’s mantle. However, the revised estimates of glacial isostatic adjustment carry their own uncertainties: they depend strongly on a small number of GPS records that are all located on the ice-sheet margins. The network of ground-based GPS sites has been considerably expanded in Greenland and Antarctica since 2007 as part of an International Polar Year project8. These extra GPS data will be instrumental in improving our present knowledge of the glacial isostatic adjustment over the polar ice sheets9, with the promise of enhanced constraints on GRACE data." On Sep 8, 2010, at 3:16 PM, Jerry Barnes wrote: > > New study slashes estimate of icecap > loss<http://www.physorg.com/news203066251.html> > > Excerpt: > > In the last two years, several teams have estimated Greenland is shedding > roughly 230 gigatonnes of ice, or 230 billion tonnes, per year and West > Antarctica around 132 gigatonnes annually. > > Together, that would account for more than half of the annual > three-millimetre (0.2 inch) yearly rise in sea levels, a pace that compares > dramatically with 1.8mm (0.07 inches) annually in the early 1960s. > > But, according to the new study, published in the September issue of the > journal *Nature Geoscience*, the ice estimates fail to correct for a > phenomenon known as glacial isostatic adjustment. > > This is the term for the rebounding of Earth's crust following the last Ice > Age. > > Glaciers that were kilometers (miles) thick smothered Antarctica and most of > the northern hemisphere for tens of thousands of years, compressing the > elastic crust beneath it with their titanic weight. > > When the glaciers started to retreat around 20,000 years ago, the crust > started to rebound, and is still doing so. > > This movement, though, is not just a single vertical motion, lead researcher > Bert Vermeersen of Delft Technical University, in the Netherlands, said in > phone interview with AFP. > > "A good analogy is that it's like a mattress after someone has been sleeping > on it all night," he said. > > The weight of the sleeper creates a hollow as the material compress > downwards and outwards. When the person gets up, the mattress starts to > recover. This movement, seen in close-up, is both upwards and downwards and > also sideways, too, as the decompressed material expands outwards and pulls > on adjacent stuffing. > > Another inconvenient truth? > > > J > > - > > No man's life, liberty, or property is safe while the legislature is in > session. - Mark Twain > > The artificial aristocracy is a mischievous ingredient in government, and > provisions should be made to prevent its ascendancy. - Thomas Jefferson > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology-Michael-Dinowitz/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-community/message.cfm/messageid:327085 Subscription: http://www.houseoffusion.com/groups/cf-community/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-community/unsubscribe.cfm
