[aerohead]

Originally Posted by freebeard

I hear plants like 1500ppm CO2.

That's called uniformitarianism as oppose to catastrophism. There is a tension between the two. https://duckduckgo.com/?q=catastrophism+vs+uniformitarianism

Once you go down the Catastrophism rabbithole, you find that when the Bosphorus was breached, the rising water advanced at a walking pace. But you know that since the ground isn't flat it was like the ending of Oh Brother, Where Art Thou.

AGWD. heh.

That would not square with the facts.