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Old 02-17-2013, 02:55 PM   #135
mhgaffney
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Join Date: Apr 2006
Posts: 10,591
Default Sagan is dead and gone. Time to move on...

Hellish Venus Atmosphere may have had cooling effect...

http://www.space.com/9155-hellish-ve...ng-effect.html

It may seem downright bizarre, but a new model of Venus' super-hot atmosphere suggests its greenhouse gases may actually be cooling the planet's interior.

These gases initially cause Venus' temperature to rise, but at a certain threshold, they can trigger dynamic processes ? which researchers call "mobilization" ? in the planet's crust that cool the mantle and overall surface temperature, researchers found.
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