There is a massive excess of organisms on the land and in the sea, converting CO2 into bio-mass. So as we burn the Fossil Fuels, we get prehistory life resuscitated as new life.
Which has left a pre-industrial 2 parts per million CO2 in the global air: levels are higher above the Artists, or a natural ice=age.
All rational scientists were taught this is high school. So no student should study at an institiution with an active Global Warming or Climate Change research project.
A static trace gas affects nothing – despite what nuclear power wishes.