Friday, January 23, 2009

Floating Arm Trebuchet Plans

warming in Antarctica reveal

The temperature has risen an average of 0.12 degrees Celsius per decade between 1957 and 2006.

global warming in Antarctica has been covered in the last 50 years a much wider area than previously thought, according to satellite data released today by NASA. A statement from the U.S. space agency said it was believed that the effects of global temperature increase is limited to the Antarctic Peninsula, a strip of land covered with ice that is the least Southern of the frozen continent.

According to NASA scientists, the general perception among forecasters was that, apart from that peninsula, the weather in the rest of the Antarctic remained largely unchanged. But according to Eric Steig, climate researcher at the University of Washington and author of the study, analysis also say that "warming is occurring in the area of \u200b\u200bWest Antarctica."

Stein noted that this conclusion was drawn from the review of historical temperature data bases provided by ground-based weather and recent reports provided by satellites. This information has been used to reconstruct 50-year history of surface temperatures across the Antarctic, the report said. And these data indicate that the temperature in Antarctica has increased an average of 0.12 degrees Celsius per decade between 1957 and 2006. However, in the region of West Antarctica that warming was greatest, with an average of 0.17 degrees Celsius per decade.

Some regions of East Antarctica have been cooling, but the trend over the past 50 years suggests that temperatures are rising, the report said NASA. The area of \u200b\u200bWest Antarctica is particularly vulnerable to climate change because its ice is below sea level and surrounded by floating platforms. His disappearance through a melt caused by global warming would be highly dangerous, because sea level would increase from five to six meters, the report said.

Source: CONICET - INTERNATIONAL SCIENCE IN THE MEDIA

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