Is variability in the Earth's climate something new or has the climate always been changing? And, is it something that we should be concerned about?
"Temperatures are increasing faster than they ever have. In the past 100 years, temperatures have risen so dramatically that thay have cancelled out all of the levitra 100 cooling that took place over the past 6,000 years."
written by Facts about the Earth, June 21, 2013
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