Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

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

To: Cheeky Kid who wrote (1363)	7/27/2010 3:44:52 PM
From: J.B.C.	3 Recommendations Read Replies (1) \| Respond to of 4326

Sorry, didn't mean to offend you. But, pointing out a leftist's hypocrisy is part of the debate, imagine Al Gore flying the world in his private jet telling us the threat of global warming.

To: Cheeky Kid who wrote (1363)	7/28/2010 3:26:37 PM
From: Curly Q	2 Recommendations Respond to of 4326

Here's an article from the Reader's Digest Strange Stories, Amazing Facts book from the 70's. Will the Ice Age Return? The world is cooling – helped by man. Some scientists are convinced that the world’s climate is getting colder every year, threatening a return to the conditions of the last ice age, which reached its peak about 18,000 years ago. Geological and historical records leave no doubt that the earth’s climate is constantly changing. From about 400 B.C. to A.D. 1300, the climate in Europe was much milder than it is today. During the little ice age, from about 1300 to about 1890, glaciers advanced, and bodies of water in the northern latitudes, such as the Baltic Sea, remained frozen for long periods of time. From 1890 to 1940 worldwide temperatures rose about 0.18 degreed Fahrenheit every 10 years. Some animals extended their ranges northward, the sea was less frozen than before, and icebergs from Greenland did not penetrate as far south. Since 1940 temperature has been dropping. According to a survey by the National Oceanic and Atmospheric Administration, the average ground readings for the Northern Hemisphere have, in the years from 1945 to 1968, fallen by one-half degree F. In the United States, east of the Continental Divide, temperatures in the last decade averaged one to four degrees cooler than in the past 30 years. Another study by the same agency noted that the amount of sunshine reaching the ground in the United States decreased by 1.3 percent between 1964 and 1972. Dr. James D. McQuigg, director of NOAA’s Center for Climatic and Environmental Assessment, points out that in crop-growing regions at higher latitudes an apparently small change in the average annual temperature may have sufficient impact on the length of the growing season to cause certain crops to be abandoned. He also notes that the range of year-to-year weather-induced variability in world production of wheat and other grain crops – the difference between production in a highly favorable weather year and that in a definitely poor year – is now equal to about 10 percent of annual world consumption. “In a real sense,” he says, “the fact that we have a margin of reserves at all is the result of good luck with weather through a few most recent years.” Most experts would agree that the basic cause of cooling is a change in the amount of the sun’s heat reaching the earth. How this change comes about and keeps the world in a recurring cycle of ice ages, followed by warm interglacial periods, has been the subject of a long debate among scientists. Many ideas have been proposed, but the one that seems to provide many answers and has much support was developed in the 1920’s and the 1930’s by a Serbian physicist, Milutin Milankovitch. In addition to spinning on its own axis and orbiting the sun, the earth also performs three other delicate motions. It wobbles on that axis, like a child’s top about to come to rest; the axis itself changes the pitch of its tilt in relation to its plane of orbit; and, finally, the ellipse that the earth describes around the sun periodically becomes more circular. These movements are hardly violent – it takes 21,000 years for the earth to complete a simple wobble, for instance – but they are enough, according to Milankovitch’s theory, to account for the great climatic changes that have occasioned the ice ages.