Skeptical Science is partnering with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. You can submit claims you think need checking via the tipline. Does increasing CO2 have a noticeable effect? The warming effect of increasing atmospheric CO2 is well-established physics, confirmed by direct observation. Experiments in the 1800s by Fourier, Foote, and Tyndall demonstrated how CO2 absorbs infrared radiation — the heat Earth emits back toward space — and re-r...
