Does anyone remember the “SPACE BLANKET”? Worked on the same principle as the CO2 global warming hypotheses. It was pitched to keep you warm like a sleeping bag. It lasted lest then one season the market.
They still sell space blankets (metallicsized plastic) because they work (the reflected heat can save your life0. The difference with CO2 is that it absorbs heat, then reemits 1/2 back and 1/2 out to space. So CO2 is not as effective, but basically the same principle.