Key thing in this thread is that radiation physics is not a good talking point for a sceptic. At the high school level the theory of warming is solid. You can warm 100% CO2 on pressurised container with a CO2 laser. Theory does not fall even though Al Gore failed in warming 400 ppm CO2 with sunlight. Real life with all the complications of the climate system is not a trivial case for university level physicists. Models fail, but why.
Instead we should be talking about the benefits of CO2 and alleged warming. We should look at the measurements and facts instead of ridiculous threats that alarmists talk about.