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Increase in the global average surface temperature resulting from enhancement of the greenhouse effect, primarily by air pollution. In 2007 the UN Intergovernmental Panel on Climate Change forecasted that by 2100 global average surface temperatures would increase 3.27.2 °F (1.84.0 °C), depending on a range of scenarios for greenhouse gas emissions, and stated that it was now 90 percent certain that most of the warming observed over the previous half century could be attributed to greenhouse gas emissions produced by human activities (i.e., industrial processes and transportation). Many scientists predict that such an increase in temperature would cause polar ice caps and mountain glaciers to melt rapidly, significantly raising the levels of coastal waters, and would produce new patterns and extremes of drought and rainfall, seriously disrupting food production in certain regions. Other scientists maintain that such predictions are overstated. The 1992 Earth Summit and the 1997 Kyoto Protocol to the United Nations Framework Convention on Climate Change attempted to address the issue of global warming, but in both cases the efforts were hindered by conflicting national economic agendas and disputes between developed and developing nations over the cost and consequences of reducing emissions of greenhouse gases.
(born March 31, 1948, Washington, D.C., U.S.) U.S. politician. He was the son of Albert Gore, who served in the U.S. Senate from Tennessee. After graduating from Harvard University, he briefly attended divinity school before serving in the Vietnam War as a military reporter (196971). He worked as a reporter for The Tennessean in Nashville (197176) while attending first divinity school and then law school at Vanderbilt University. He served in the U.S. House of Representatives (197785) and later the Senate (198593). A moderate Democrat, he was Bill Clinton's vice presidential running mate in 1992 and served two terms (19932001) as vice president under Clinton. As the Democratic presidential nominee in 2000, he won over 500,000 more popular votes than Republican George W. Bush but narrowly lost the electoral vote (271266). Gore subsequently devoted much of his time to environmental issues, and his 2006 film on global warming, An Inconvenient Truth, won an Academy Award for best documentary. For his environmental work, he received, with the United Nations' Intergovernmental Panel on Climate Change, the 2007 Nobel Prize for Peace. In 2007 he also earned an Emmy Award for creative achievement in interactive television for Current TV, a user-generated-content channel he cofounded in 2005.
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Originally Posted by Richard Guy
The evidence is conflicting and confusing. It is comprised of a series of half truths. Gore says that in five years the ice caps will disappear in summer. It is conjecture based on fallacy. Other, so called, authorities speak of sea level rise of 2 millimeters per year: others say that we will have a meter rise in sea level before the end of the century. A millimenter of sea level rise is a rediculous. Sea level is not measured in millimeters thats an impossibility. Sea level is measured in feet e.g. the difference between the Caribbean and the Pacific Ocean is 22 feet. I challenge any expert to interpolate 2 millimeners of sea rise in either the Caribbean and or the Pacific.
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Originally Posted by ProxyAmenRa
I am a pretty optimistic guy. It is reasonable to assume that more sea ice would melt in the summer period due to higher temperatures from the 1970's onwards.
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Originally Posted by ProxyAmenRa
If we extrapolate the trend it would take roughly 40 years for the entire of the sea ice to melt. If the Arctic ice sheet did not entirely melt during the 300 year period of the medieval warming where temperatures in that region were 1 degrees Celsius warmer than today I think it is safe to assume it won't during this warm period.
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Originally Posted by ProxyAmenRa
I like to reiterate that climate is a chaotic system. It seems like we are at the mercy of the sun.
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Originally Posted by ProxyAmenRa
There was a good paper by Professor Richard Lindzen but I would like to review the subject further. I distrust the computer modeling used by the IPCC after reviewing the code produced at the CRU.
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Originally Posted by Stephen Pare
Thanks for the link; I appreciate a discussion without name-calling and with a willingness to engage the facts.
On the contrary, the link you provide shows that the minima for 2008 and 2009 are both lower than any year except 2007; the drop has not by any stretch been, as you put it, "mitigated". If you look at all the data from 1979 on, there is an unmistakeable downward trend; it is only in 2007 that "the bottom falls out." The partial recovery in 2008 and 09 only brings the minimum up to about 3.5 million square km. This is not cause for optimism. In the ten years previous to that the average was over 4; from 1979 to 1988 the average was over 5. Note the scale; there's just a lot less ice in the summer than there used to be. I would remind you that it is the amount of summer (minimum) ice that is at issue, since it is then that a warmer Arctic Ocean poses a threat to the Greenland land ice. It should concern us greatly that this has happened in spite of a prolonged solar minimum. Given its 10-12 year cycle, the sun is due for increased activity sometime soon. . |
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Originally Posted by ProxyAmenRa
If you would take the time to look at this graph (http://arctic.atmos.uiuc.edu/cryosph...rrent.area.jpg) posted on the cryosphere website you would notice that the loss of sea ice during 2007 has been mitigated by the increase in the amount of sea ice in 2008 and 2009.
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Originally Posted by LindaI
“The sea ice around the (Antarctic)continent is far above average (ref. UIUC). Also, note the colder than average sea surface temperatures around Antarctic (ref. NOAA). If the media is going to discuss the Wilkens Ice Shelf, they should also discuss this other data. The expansion of the sea ice coverage implies a cooling.”
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Originally Posted by LindaI
More than 30,000 scientists worldwide have dissented "anthropogenic" climate change.
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Originally Posted by LindaI
The Copenhagen Conference is no more than than an attempt at a "world political governance" complete with blame and taxes. Pay attention, sheeple.
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Originally Posted by Stephen Pare
The link that you provide does not support your claim; on the contrary. Especially startling is the 2007 video of the Arctic sea ice collapse.
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