Ebba wrote:However, I must ask you what do you think is causing the thinning of ice at the poles? It is being debated to add the polar bears to the threatened list due to loss of habitat. At this rate, it may be destroyed by 2040. 552 billion tons of ice melted this summer from the Greenland ice sheet. The surface area of summer ice floating in the Arcitic Ocean this summer was nearly 23 percent below the previous record. NASA data shows the remaining sea ice to be unusually thin. Alaska's frozen permafrost is warming and surface temps in the Arcitc Ocean are the highest in 77 years of record keeping.
Well, you have to read these stories carefully. The ice at the "poles" is not shrinking. The ice at the South Pole is actually growing! Some glaciers in Greenland are receding but others in Greenland are growing.
See here:
http://www.iceagenow.com/Greenland_Ice_ ... hicker.htm http://www.newsbusters.org/blogs/noel-s ... es-cooling http://mc-computing.com/qs/Global_Warming/Glaciers.html For more just google “greenland ice cap glacier growing expanding”
In addition, Greenland was much warmer than it is now over 1000 years ago when the Vikings landed on Greenland and established agricultural communities there. The glaciers were obviously much smaller than now. The temperatures were much warmer then than now. And then things got much colder and the Vikings had to abandon their settlements.
Was the warming that permitted the Vikings to settle Greenland man-made? Was the cooling that ended the colonization of Greenland man-made? Is the world the warmest it has ever been? The answer to each of these questions is emphatically “NO.”
As to endangered species, greens warned that the Alaskan pipeline constructed in the 70s or 80s would kill moose or elk. In fact, the critters have thrived around the pipeline and there are more of them than ever before. Polar Bears don’t have to live on ice. In fact, a warming of their habitat might actually cause their numbers to increase as the warming would bring other, smaller animals into their range and increase the food supply to Polar Bears.
As for the Arctic ice cap, it did melt quickly this year but it is refreezing at a record pace too! See here:
http://www.abovetopsecret.com/forum/thread322949/pg1 http://10ksnookers.blogspot.com/2008/01 ... cover.html http://rimoftheworld.net/discuss/134/31118 For more just google “arctic ice refreezing quickly”
Some parts of the earth may be growing warmer and some may be growing cooler. The evidence is quite mixed. Google NASA reports and measurements for air temperature. It shows almost no change in the 20 years they have been monitoring temperatures with satellites.
If you want to read two good books look for “State of Fear” by Michael Crichton and “The Politically Incorrect Guide to Global Warming” by Christopher C. Horner. There is a review of PIG: Global Warming here:
http://www.challies.com/archives/book-r ... obal-w.php.
When I was a child we were all told that the earth was entering a new ice age and we would freeze and starve. Now, my children are told the exact opposite. A few hundred years ago a man named Malthus predicted world-wide famine. It never happened.
And finally, think about this. The polar ice cap on Mars is melting. Why do you suppose that is the case? Is it man-made or is it possible that the source of heat for both Mars and Earth may be giving off a little more heat than it did a few years ago. If that is possible, what might man do to make the common Terran and Martian primary heat source cooler?