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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Brumar89 who wrote (766191)	1/27/2014 3:27:34 PM
From: Wharf Rat	Read Replies (1) \| Respond to of 1572460

Here is what IPCC has to say on the topic of global warming and winter cold outbreaks: In IPCC’s Working Group II: Impacts, Adaption and Vulnerability, we are told there will be “warmer winters and fewer cold spells, because of climate change.” Oh, how true. Average temperatures over a broad area of the north polar region are now in excess of 20 degrees Celsius (32 degrees Fahrenheit) above daily norms for this time of year. Areas from Alaska to Norway to Greenland to the North Pole are experiencing record or near record highs. Meanwhile, the circumpolar Jet Stream has been malformed into an extraordinarily exaggerated north-south Rossby Wave pattern. An extreme amplification of a blocking pattern that has been in place for more than 10 months, pumping a continual flow of heat into the Arctic, and which, this winter, has resulted in numerous North American cold snaps comparable to those that used to happen in the 1980s and 1990s. (Global temperature anomaly vs the 1985 to 1996 mean. Note the large regions of the High Arctic experiencing temperatures that are 20 degrees C above average or higher. Image source: NOAA) The result is a kind of north-south flip-flop in temperatures following a polar vortex that has been ripped in half by a surge of anomalous warmth and a periodic pulsing of the Arctic’s remnant cold southward over the continents. Yesterday, the high temperature in Svalbard, for example, less than 600 miles from the North Pole peaked at 32 degrees Fahrenheit, near all-time record warmth for this frigid region. In contrast, the high for Bethesda Maryland, thousands of miles to the south, was nine degrees lower at 23 Fahrenheit. robertscribbler.wordpress.com