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To: Moominoid who wrote (2104)7/22/2001 11:39:57 AM
From: GROUND ZERO™  Read Replies (1) | Respond to of 12411
 
How come Earth lost so much carbon dioxide while the two adjacent planets, Mars and Venus, still have an atmosphere comprised of 95% carbon dioxide? I find this odd.....

GZ



To: Moominoid who wrote (2104)7/23/2001 12:09:39 PM
From: Chip McVickar  Read Replies (1) | Respond to of 12411
 
>>Carbon dioxide levels were very much higher in the Cretaceous than now. At that time huge amounts got locked up in oil deposits and more importantly limestone. <<

Hydron Carbons are abriogenic not biogenic.


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