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To: Libloather

My memory says I’ve read that ancient earth atmosphere had a much higher CO2 content

4 posted on 02/26/2019 2:53:38 AM PST by xzins (Retired US Army chaplain. Support our troops by praying for their victory.)

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To: xzins

Photosynthesis is optimal at about 4000 ppm.

This is simple idiocy.

45 posted on 02/26/2019 6:13:09 AM PST by lepton ("It is useless to attempt to reason a man out of a thing he was never reasoned into"--Jonathan Swift)

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