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28th July 2008, 04:37 AM
A global change in climate could explain the explosion in marine biodiversity that took place 460 million years ago. Researchers have now found evidence of a progressive ocean cooling of about 15°C over a period of 40 million years during the Ordovician. Until now, this geologic period had been associated with a "super greenhouse effect" on our planet.
More... (http://www.sciencedaily.com/releases/2008/07/080727225420.htm)
More... (http://www.sciencedaily.com/releases/2008/07/080727225420.htm)