[ExTxMarine]

Plant life drops off rapidly below 200. We are in no danger of that.

I am not talking about an overnight change, I am talking frog in the pot slow boiling. TODAY we are not in danger, but like the social systems which were developed over 60 years ago, in time they begin to take their toll. The LIBS will demand more and more CO2 to be captured - to combat AGW. Their end goal is probably to reach the 200ppm or less to PROVE that AGW is real!

The fools involved in this mess don't care what they have to do to control us - even killing us - so long as they get to be proven right.

[palmer]

Not easy. The ocean will release CO2 at about 300 ppm or higher now because of recent uptake. So the new natural equilibrium for CO2 is safely high. It would be very difficult to get below that.

Your points are valid: there is a group called 350.org that thinks along those lines (reducing CO2 is good). There is also plant death and ice age spiral below a certain amount. But getting to that point now with our added CO2 is basically impossible.