Concentrations of CO2 in the atmosphere were as high as 4,000 ppm during the Cambrian period about 500 million years ago, and as low as 180 ppm during the Quaternary glaciation of the last two million years.
CO2 is plant food. If one looks a the geologic past we had CO2 levels in the thousands and not the hundreds today. Plants thrived and animals ate them. Carnivores ate those animals and became great beasts of prey. In reality today we are in a CO2 minimum not far from levels for most life on earth that would perish.
“In reality today we are in a CO2 minimum not far from levels for most life on earth that would perish.”
Had heard this too but thanks for reminding.
Climate Catastrophists care nothing about the climate. All they want is for most humans on earth to die so the number of live humans on earth drops to a billion or less. Whatever it takes to reach that goal is what they are for.