Study: Doubling CO2 from present to 800 ppm has almost no warming effect – ‘CO2 is a bit player’ – ‘Almost undetectable’ impact

https://junkscience.com/2021/09/study-doubling-co2-from-present-to-800-ppm-has-almost-no-warming-effect/

The effect of doubling CO2 from 400 ppm to 800 ppm plus feedbacks is 0.5°C, reports a new study using HITRAN data. This is only 0.04°C more than the warming from doubled CO2 from 200ppm to 400 ppm (0.46°C). Support JunkScience.com!