HTTP:: Link Between CO2 Levels and Antarctic Formation Proven
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In the first large-scale study to ever prove so, experts at the Cardiff University, in the United Kingdom, determined that the decline in CO2 levels in the planet's atmosphere some 34 million years ago led to the formation of the ice caps in Antarctica. Scientists from the University of Bristol and the Texas A&M University, in the United States, were also involved in the new study, e! Science News reports. Planetary scientists have believed for a long time that the Antarctic ices appeared as a result of a gradually diminishing greenhouse effect, and this is the first major scientific work to prove this. The new paper, published online ahead of print in the respected scientific journal Nature, cites geological records that show ice formation in the Antarctic began when CO2 concentrations in the planet's atmosphere reached a tipping point by volume of around 760 parts per million. This shift was recorded during the Eocene-Oligocene climate transition. The find was made !
by analyzing microfossils extracted from rocks at a dig site in a small East-African village. The records painted an image of CO2 levels during those distant times. “About 34 million years ago the Earth experienced a mysterious cooling trend. Glaciers and small ice sheets developed in Antarctica, sea levels fell and temperat...
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http://news.softpedia.com/news/Link-Between-CO2-Levels-and-Antarctic-Formation-Proven-121553.shtml
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