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WadadliEmpress · 03-01-2006, 12:15 PM

http://www.pbs.org/wgbh/nova/transcr...8warnings.html

^^^( a lil snippet from above) The giant ice sheet in the east is probably more than 15 million years old. But the West Antarctic Ice Sheet is younger, and scientists fear, much less stable. While the ice on the eastern side of the continent rests on dry land, most of the West Antarctic Ice Sheet sits precariously on bedrock that lies below sea level. Part of the ice sheet is in direct contact with sea water, which is much warmer than the air. And that means the ice can melt much faster….In the last century, global temperatures have risen about one degree Fahrenheit, possibly as a result of industrial activity. But on the Antarctic Peninsula, it's warmed up more than four degrees during the same period…When it comes to global warming, popular fears usually focus on the Water world disaster, melting polar ice caps and devastating floods. But now, there's concern that if the world gets too warm, high temperatures could help trip a climate trigger, and plunge us into a colder and icier age. If the ice teaches us anything, it's that there is no room for complacency. This is a volatile world. If climate shifted abruptly in the past, not just once, but repeatedly, it's inevitable it will happen again. The question is, when?
In the bolded statement, it brings to light in our previous discussion your point of the climates being cyclic. However these cycles can be “triggered” and forced to occur faster than it normally would, if factors that aid in creating “global warming” come into play.

http://www.boston.com/news/science/a...t_faster_rate/
^^ (a lil snippet from above )An increase in surface air temperatures appears to be causing the glaciers to flow faster, albeit at the still-glacial pace of eight miles to nine miles a year at their fastest clip, and discharge increased amounts of ice into the Atlantic…. Rignot and Kanagaratnam believe warmer temperatures boost the amount of melt water that reaches where the glaciers flow over rock.
Some stats on ice melting. http://www.earth-policy.org/Updates/Update8_data.htm
http://www.earth-policy.org/Updates/Update8.htm
^^^Also in this article you will see along with the link for stats, that Glacier ice over sea melt faster than ice over land. One reason, which is unanimous with all the articles, is that the ice is thinner over the sea and the seas in these regions are warmer than the air. These two contribute to the ice shelves melting faster. Also referencing the article on the Antarctic, melting ice on continental glacier may take years to cause an effective or sufficient melting due to the rate at which heat travels through the ice. Which will explain why you see most of the change occur closer to the USSR and not so much over Greenland and the north Atlantic region. http://www.whoi.edu/institutes/occi/...hange_wef.ht l
^^^ In a prefect environment, melting would be uniform, but take into consideration land formation and ocean currents that can affect weather patterns. These are other factors that will affect melting. This article discusses ocean currents and the change is salinity in the northern hemisphere. In short saying, within the last 40+ years (almost same amount of time given to say that human emissions have been causing a warming effect) the waters in the north are becoming fresher, one reason could be contributed to the melting snow, but what’s happening is the warmer waters that would travel north normally and release heat in the atmosphere and then sink to the bottom to maintain the colder saltier underlying current is slowing down, the fresher warmer waters are remaining longer on the surface…you get the point.
vvv They have linked human emissions as a contributing factor to “global warming”.
http://en.wikipedia.org/wiki/Attribu...nd_Attribution
^^ (a lil snippet from above) The current scientific consensus, as expressed in 2001 by the Intergovernmental Panel on Climate Change (IPCC) and the National Academy of Sciences (NAS), and recently confirmed by a joint statement of the G8 academies of science, is that most of the warming observed over the last 50 years is attributable to human activities. ^^^With our argument as to whether or not Global warming is a contributing factor, I say yea. Now granted global warming and cooling are natural climatic occurrences that have been taking place for hundreds of thousands of years. However, looking at the studies its safe to admit that human emissions are speeding up if you will, in “triggering” what’s suppose to be the natural climate change.

03-01-2006, 12:15 PM	#4 (permalink)
WadadliEmpress Home Join Date: Jan 2005 Location: ANTIGUA BABY!! Posts: 17,478 Credits: 1,998	http://www.pbs.org/wgbh/nova/transcr...8warnings.html ^^^( a lil snippet from above) The giant ice sheet in the east is probably more than 15 million years old. But the West Antarctic Ice Sheet is younger, and scientists fear, much less stable. While the ice on the eastern side of the continent rests on dry land, most of the West Antarctic Ice Sheet sits precariously on bedrock that lies below sea level. Part of the ice sheet is in direct contact with sea water, which is much warmer than the air. And that means the ice can melt much faster….In the last century, global temperatures have risen about one degree Fahrenheit, possibly as a result of industrial activity. But on the Antarctic Peninsula, it's warmed up more than four degrees during the same period…When it comes to global warming, popular fears usually focus on the Water world disaster, melting polar ice caps and devastating floods. But now, there's concern that if the world gets too warm, high temperatures could help trip a climate trigger, and plunge us into a colder and icier age. If the ice teaches us anything, it's that there is no room for complacency. This is a volatile world. If climate shifted abruptly in the past, not just once, but repeatedly, it's inevitable it will happen again. The question is, when? In the bolded statement, it brings to light in our previous discussion your point of the climates being cyclic. However these cycles can be “triggered” and forced to occur faster than it normally would, if factors that aid in creating “global warming” come into play. http://www.boston.com/news/science/a...t_faster_rate/ ^^ (a lil snippet from above )An increase in surface air temperatures appears to be causing the glaciers to flow faster, albeit at the still-glacial pace of eight miles to nine miles a year at their fastest clip, and discharge increased amounts of ice into the Atlantic…. Rignot and Kanagaratnam believe warmer temperatures boost the amount of melt water that reaches where the glaciers flow over rock. Some stats on ice melting. http://www.earth-policy.org/Updates/Update8_data.htm http://www.earth-policy.org/Updates/Update8.htm ^^^Also in this article you will see along with the link for stats, that Glacier ice over sea melt faster than ice over land. One reason, which is unanimous with all the articles, is that the ice is thinner over the sea and the seas in these regions are warmer than the air. These two contribute to the ice shelves melting faster. Also referencing the article on the Antarctic, melting ice on continental glacier may take years to cause an effective or sufficient melting due to the rate at which heat travels through the ice. Which will explain why you see most of the change occur closer to the USSR and not so much over Greenland and the north Atlantic region. http://www.whoi.edu/institutes/occi/...hange_wef.ht l ^^^ In a prefect environment, melting would be uniform, but take into consideration land formation and ocean currents that can affect weather patterns. These are other factors that will affect melting. This article discusses ocean currents and the change is salinity in the northern hemisphere. In short saying, within the last 40+ years (almost same amount of time given to say that human emissions have been causing a warming effect) the waters in the north are becoming fresher, one reason could be contributed to the melting snow, but what’s happening is the warmer waters that would travel north normally and release heat in the atmosphere and then sink to the bottom to maintain the colder saltier underlying current is slowing down, the fresher warmer waters are remaining longer on the surface…you get the point. vvv They have linked human emissions as a contributing factor to “global warming”. http://en.wikipedia.org/wiki/Attribu...nd_Attribution ^^ (a lil snippet from above) The current scientific consensus, as expressed in 2001 by the Intergovernmental Panel on Climate Change (IPCC) and the National Academy of Sciences (NAS), and recently confirmed by a joint statement of the G8 academies of science, is that most of the warming observed over the last 50 years is attributable to human activities. ^^^With our argument as to whether or not Global warming is a contributing factor, I say yea. Now granted global warming and cooling are natural climatic occurrences that have been taking place for hundreds of thousands of years. However, looking at the studies its safe to admit that human emissions are speeding up if you will, in “triggering” what’s suppose to be the natural climate change.