Interview series of Will Happer

https://wattsupwiththat.com/2020/09/04/interview-series-of-will-happer/

Happer is a dinosaur who never 'got' that CO2 can't cause global warming because its 15 micron -80C radiation isn't heat. Water vapor at ground level AKA ground fog does indeed slow surface cooling at night, but way up at cloud level where it's frigid it's has no effect on surface temperatures, but rather contains heat already removed from the surface, which after being cooled by the atmospheric lapse rate will eventually send precipitation back down, cooling the surface even more than the Sun did. So if CO2 can't do it, there is no way for the atmosphere to heat the surface with its own heat. The atmosphere isn't a greenhouse it's a giant chimney that only cools the surface. Even the lapse rate is caused by the atmosphere's pressure profile and heat capacity, and all surface heat rolls through it toward space leaving it unchanged. As long as the Sun keeps rising every morning, the heating/cooling system works great, and CO2 has nothing to do with.

An understanding of the implications of Planck's Radiation Law leads to the conclusion that atmospheric CO2 can't melt an ice cube and can't cause any global warming, NADA, ZILCHO.  It's not about atmospheric CO2 concentrations because cold isn't heat, period. The Sun heats the Earth's surface to a temperature range of -50C to +50C, and the cooling processes can't be touched by CO2.

Happer went his whole career never figuring out that 15 micron radiation can't heat Earth's surface higher than, duh, -80C.  Instead he got hung up on 15 micron radiation depending on the logarithm of atmospheric concentration.  Sorry, the logarithm of 1 is ZERO. He and every Tom, Dick, and Harry out there need to shrug off their CO2 fixation.

http://www.historyscoper.com/thebiglieaboutco2.html