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Freethought & Rationalism ArchiveThe archives are read only. |
05-22-2003, 04:10 PM
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#1 |
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Meteors and the Permian extinction
So I saw a PBS show a few weeks ago, about a meteor impact that created a huge extinction event at the Permian boundary. It mentioned that the impact raised the world temperature 1 or 2 degrees. But that the impact, by itself, wasn't enough to explain the geologic record of extinction, however.
It then discussed Siberian lava traps, and a release of another gas (can't remember which one) that further raised the temperature 1-2 degrees. The combined effect of both events created the Permian extinction. Did anyone else see this show? Apologies if I don't have the the explanation 100% correct - feel free to fix it up. 
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05-22-2003, 04:13 PM
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#2 |
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I see that a similar thread has already been opened.
 That'll teach me.
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05-22-2003, 06:15 PM
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#3 |
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Banned
Join Date: Sep 2001
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LOCK
And on that note...
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