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http://sg.news.yahoo.com/afp/20080121/tts-science-antarctic-volcano-climate-c1b2fc3.html
wonder what if it really happens again
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It would be good if it could happen again, but not in big magnitude, because volcanic gases could cool down global warming.
The sulphur dioxide also reacts with water vapour and other chemicals in the upper atmosphere to create sulphate compounds which also cool the surface by absorbing heat. Mr Parker estimates that the overall effect of the volcano was to lower average global temperatures by 0.50C - tiny in human terms, but significant to scientists who are trying to measure rises in global temperature of a tenth of a degree each year.
http://findarticles.com/p/articles/mi_qn4158/is_19950820/ai_n14001376Edited by maurizio13 21 Jan `08, 8:52AM
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