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Alan LeHun · August 24th 16, 11:40 AM posted to uk.sci.weather

In article ,
says...
You can have too much of a good thing. We had the perfect amount of CO2. Things can only get worse.

How do you know it was the /perfect/ amount? In terms of both bio-mass
and bio-diversity, life on planet Earth has always faired better during
periods of high CO2 concentration.

Almost all the fossil fuels which we are consuming just now were laid
down during the Carboniferous. An epoch of higher CO2 concentrations
that is marked in the fossil record as being one of the most productive
epochs the planet has ever seen.

As long as CO2 levels are stable, just about any level is good. Further,
within limits, higher is probably better. The worst case is when CO2
levels are not stable, and unfortunately that is the path on which we
appear to have taken our first steps.

--
Alan LeHun