Old Rocks
Diamond Member
"You cannot just look back in time for an era with similar CO2 levels because the extra CO2 is mostly human caused, not the result of natural equilibrium."There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact. -Mark Twain
This is the problem. Two 'experts' look at the same data and come to different conclusions. Which one is right? The truth is that both are almost certainly wrong.
CO2 has a warming influence, as shown by simple radiative physics. Some experts believe interactions with the other factors will multiply the amount, some think it will divide it.
You cannot just look back in time for an era with similar CO2 levels because the extra CO2 is mostly human caused, not the result of natural equilibrium.
The Earth has gone through many disturbances to equilibrium and shown itself to be resilient. We are not dangling on the precipice, no tipping point is imminent.
The extra warmth and plant food will help us feed the billions of people here now, with more coming. It is much easier to make the case that over population is a clearer problem than AGW. But that would be politically incorrect. There is no moral high ground to be found there. Or massive funding and political power.
Goddamn, that is a totally brainless statement. CO2 is CO2, whether created by intrusion of a plume on coal beds, or by mankind burning coal. The physics for CO2 do not change simply because it is created by our burning of fossil fuels.
As far as the rest of your post goes, so you are going to go on the political side, which is where you have been all along.