Minute five: if we convert all of the excess CO2 in the air into soil, we'll need to add 1/10th of an inch of topsoil per year. "Therefore I conclude that the CO2 problem is one primarily of land management."
After berating climate scientists for using mathematical models for using fluid dynamics (driven by huge supercomputers), he turns around and does a back-of-the-envelope calculation like this. It was so disappointing to listen to a brilliant person utterly fail at self-reflection.
As for the rest of your argument, there are books and books and books that address all of it point by point.
As for nonlinear systems, your trillion-cell body is beyond my comprehension to understand or predict a day or two in advance. However, I predict you will be dead in 90 years. I also predict it will be cold in winter and warm in summer. Do you understand that models are layered and not all inputs are the same?