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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: SilentZ who wrote (599977)	2/5/2011 11:25:47 AM
From: longnshort	1 Recommendation Respond to of 1570499

"When an ice age happens, it happens over thousands or tens of thousands of years. " wrong again there Public School boy Mini Ice Ages can happen Fast! Mini-ice ages can happen fast. Maybe not as extreme as a recent Hollywood movie, but close enough, according to new research. A slowdown of the Gulf Stream led to a sudden "Big Freeze" across Europe about 12,800 years ago. This event was known as the Younger Dryas Mini Ice Age. Climate changes associated with the Younger Dryas, highlighted here by the light blue bar, include (from top to bottom): cooling and decreased snow accumulation in Greenland, cooling in the tropical Cariaco Basin, and warming in Antarctica. Also shown is the flux of meltwater from the Laurentide Ice Sheet down the St. Lawrence River. Image courtesy of NOAA. New Greenland ice core research from the University of Saskatchewan suggests that this mini ice age took just months, instead of a decade to take hold over Europe. Analysis of carbon and oxygen isotopes show that at the start of the Big Freeze, temperatures plummeted and lake productivity stopped within months, or a year at most. "It would be like taking Ireland today and moving it up to Svalbard" in the Arctic, says William Patterson, lead author of the study. The Younger Dryas mini ice age was brought about when a glacial lake covering most of north-west Canada burst its banks and poured into the North Atlantic and Arctic Oceans. The huge flood diluted the salinity-driven North Atlantic Ocean mega-currents, including the Gulf Stream, and stalled it. Two studies published in 2006 show that the same thing happened again 8200 years ago, when the Northern hemisphere went through another cold spell, according to the NewScientist article. Some climate scientists have suggested that the Greenland ice sheet could have the same effect if it suddenly melts through climate change, but the 2007 report of the Intergovernmental Panel on Climate Change (IPCC) concluded this was unlikely to happen this century. Categories: Science global-warming.accuweather.com

To: SilentZ who wrote (599977)	2/6/2011 9:22:51 AM
From: steve harris	3 Recommendations Respond to of 1570499

You're working too hard in defending the global warming scam. If the earth continues to cool, are you still saying it's man made global warming? That takes us back to the 70s when the left said the next ice age was coming. You can't have it both ways. Of course the global warming groupies have had to change the name to climate change, just like lefties had to change their name to "progressives". The global warming groupies were exposed for everyone to see when it was shown they were outright lying and cooking the data. When it's getting warmer, it's global warming, when it's getting cooler, it's global warming. How childish... I'm still laughing at the thread global warming groupies predicting record hurricanes. Remember that one here? The earth's climate is affected most by the sun. The sun affects radio and TV operations in 11 year cycles just as it affects the weather. Other longer patterns have been measured. It's colder now because sunspot activity is at it's low period in the cycle. Nothing more, nothing less. Read some on sunspots and weather if you're curious. You'll see both sides. Of course NASA must dismiss the sun as affecting the earth's weather. scientificamerican.com The end justifies the means....