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To: Moominoid who wrote (22953)9/25/2007 7:12:34 AM
From: Maurice Winn  Read Replies (1) | Respond to of 218180
 
Human civilization is now self-defining. Humans are moving out of the biological world into an abstract self-referential realm.

Apart from that, Gaia hasn't been stable, ever, and has always been on a suicidal trajectory.

The assumption that the ecosphere is adapted to a certain state is false. 1500 ppm CO2 was just a couple of hundred million years ago. That's like yesterday. Life has been on the go for a billion years.

There is not a single ecosphere. Each DNA variety has its own ecosphere and the DNA is a hard-wired record of the exigencies of life experienced by each organism's antecedents. Each gene pool is a pastiche of what went before, with available responses lurking around in the gene pools to cope with changes as they arise.

"Existing conditions" are not stable, which is what you are assuming. That's a false assumption. Doing nothing, or removing all humans, wouldn't keep things as they are.

Mqurice