Video here.

Contains graph showing (at 1:34:36) the declining CO2 content in the atmosphere over the past 160 million years. In that time, it went in a pretty straight line down from 2,500 ppm to now about 3-400 ppm. We are now close to the point where plants will die (at CO2 below 150 ppm). If nothing changes, this will happen in about 5 million years.

Here is Moore’s book (from 2021) Fake Invisible Catastrophes and Threats of Doom.