Plants and bacteria metabolise CO2, building biomass, anmd excreting oxygen. Oxygen is the greatest pollutant in Earth history.
The Cretatious mass extiction was a carbon crysis! They could only take in during the day the CO2 they excreted at night, as they matobilised carbohydrates to get at energy. New Scientist published this fact in 2003.
In the Jurassic there was 4 parts per million CO2 in the global air. But 3 matural ice ages, when CO2 spiked at 8 ppm. Harvard aggrees we have a preindustrial 2ppm CO2 in the air. The world centre for biological work does not believe in man-made climate change – and finds it so sad the world appears to.
In the modern epoch photosynthesis only leaves 2 ppm CO2 in the day time air. They greadily metabolise the CO2 in the morning air. The limit to life on Earth is available CO2.
Man's CO2 only adds 0.0004% to the natural CO2 produced by fires and animal respiration. Which is all converted to biomass.
Buring the fossil fuels increases modern life on Earth. But as the CO2 is sucked from the air, there si no weather effect.
In the little ice age we were back at 4ppm, so it is safe to conclude CO2 is a climate follower than does not affect the weather.
That is a nuclear lie. Which academics fear trashing, and nuclear power invests seriously in higher education.
So professors who tal kabout 'man-made climate change' are spouting rubbish! O level biology teaches that nature caps free CO2 at a static 2ppm. ~Such individuals are dangerous idiots – doing the PR for nuclear power.