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Politics : Manmade Global Warming, A hoax? A Scam? or a Doomsday Cult? -- Ignore unavailable to you. Want to Upgrade?

To: Webster Groves who wrote (2189)	1/31/2011 10:41:40 PM
From: russet	1 Recommendation Read Replies (1) \| Respond to of 4326

Wiki says, ice sheets as thick as 3 km. And good news, we will be saved by rising land masses as glaciers melt. And North Eastern North America is still rising so as Florida sinks us North easters prosper. ********************** Post-glacial reboundFrom Wikipedia, the free A model of present-day surface elevation change due to post-glacial rebound and the reloading of the ocean basins with seawater. Red areas are rising due to the removal of the ice sheets. Blue areas are falling due to the re-filling of the ocean basins when the ice sheets melted and because of the collapse of the forebulges around the ice sheets.Post-glacial rebound (sometimes called continental rebound, glacial isostatic adjustment) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostasy. It affects northern Europe (especially Scotland, Fennoscandia and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, parts of Patagonia, and Antarctica. [edit] Overview Changes in the elevation of Lake Superior due to glaciation and post-glacial reboundDuring the last glacial period, much of northern Europe, Asia, North America, Greenland and Antarctica were covered by ice sheets. The ice was as thick as three kilometres during the last glacial maximum about 20,000 years ago.** The enormous weight of this ice caused the surface of the Earth's crust to deform and warp downward, forcing the fluid mantle material to flow away from the loaded region. At the end of the ice age when the glaciers retreated, the removal of the weight from the depressed land led to slow (and still ongoing) uplift or rebound of the land and the return flow of mantle material back under the deglaciated area. Due to the extreme viscosity of the mantle, it will take many thousands of years for the land to reach an equilibrium level. Studies have shown that the uplift has taken place in two distinct stages. The initial uplift following deglaciation was rapid (called "elastic"), and took place as the ice was being unloaded. After this "elastic" phase, uplift proceeded by "slow viscous flow" so the rate decreased exponentially after that. Today, typical uplift rates are of the order of 1 cm/year or less. In northern Europe, this is clearly shown by the GPS data obtained by the BIFROST GPS network.[1] Studies suggest that rebound will continue for about at least another 10,000 years. The total uplift from the end of deglaciation depends on the local ice load and could be several hundred metres near the centre of rebound. Map of Post Glacial Rebound effects upon the land-level of the British Isles.Recently, the term post-glacial rebound is gradually being replaced by the term glacial isostatic adjustment. This is in recognition that the response of the Earth to glacial loading and unloading is not limited to the upward rebound movement, but also involves downward land movement, horizontal crustal motion,[1][2] changes in global sea levels,[3] the Earth's gravity field,[4] induced earthquakes [5] and changes in the rotational motion. [6]

To: Webster Groves who wrote (2189)	2/1/2011 12:52:44 PM
From: joseffy	Respond to of 4326

OMG! ANOTHER GLOBAL WARMING SNOWSTORM!! ...................................................... January 31st, 2011 drroyspencer.com Al Gore has caused the spread of more pseudo-scientific incompetence on the subject of global warming (I’m sorry — climate change) than any climate scientist could possibly have ever accomplished. Who else but a politician could spin so much certainty out of a theory? As someone who has lived and breathed meteorology and climate for 40 years now, I can assure you that this winter’s storminess in the little 2% patch of the Earth we like to call the ‘United States of America’ has nothing to do with your SUV. Natural climate variability? Maybe. But I would more likely chalk it up to something we used to call “WEATHER”. Let me give you a few factoids: 1) No serious climate researcher — including the ones I disagree with — believes global warming can cause colder weather. Unless they have become delusional as a result of some sort of mental illness. One of the hallmarks of global warming theory is LESS extratropical cyclone activity — not more. 2) If some small region of the Earth is experiencing unusually persistent storminess, you can bet some other region is experiencing unusually quiet weather. You see, in the winter we get these things called ’storm tracks’…. 3) Evidence for point #2 is that we now have many years of global satellite measurements of precipitation which shows that the annual amount of precipitation that falls on the Earth stays remarkably constant from year to year. The AREAS where it occurs just happen to move around a whole lot. Again, we used to call that “weather”. 4) Global average temperature anomalies (departures from seasonal norms) have been falling precipitously for about 12 months now. Gee, maybe these snowstorms are from global cooling! Someone should look into that! (I know…cold and snow from global cooling sounds crazy….I’m just sayin’….) I could go on and on. Now, I know I’m not going to change the minds of any of the True Believers…those who read all of Reverend Al’s sermons, and say things like, “You know, global warming can mean warmer OR colder, wetter OR drier, cloudier OR sunnier, windier OR calmer, …”. Can I get an ‘amen’??