New experimental research shows that CO2 has virtually no effect on air temperature based on radiosity. The total measured warming was 0.3C up to 100 ppm, then virtually zero additional warming from 100 to 400 ppm. https://sciencedirect.com/science/article/pii/S2590123024015548 The IPCC claims that doubling CO2 (280 to 560 ppm) should produce 2.0-4.5°C warming. Absolutely laughable!