Consider a box of 10,000 air molecules. 3 of them were co2 molecules. Industrialisation has added a 4th. How can one extra molecule in 10,000 cause global warming? When someone tells me one extra co2 molecule in 10,000 air molecules can cause global warming- that’s amazing - I want to know how that works. There is no thermodynamic explanation. We are expected to believe in a new ‘magic’ molecule.