Thread: Earth's Orbit Unpredictable !
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Old 16-07-2011, 04:37 PM
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CraigS
Unpredictable

CraigS is offline 		 
Join Date: Jul 2010
Location: Australia
Posts: 3,023
The causes for these extinction events are still very much up for debate, too.

They don't all have to attributed to surface or atmospheric temperature variations.

Cheers
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