WHY CO₂ MATTERS

Sep 2, 2025

At first, I had trouble tracking down Scottish geologist Dr. Iain Stewart (chalk it up to Bing, not him). Once I did, I found his videos refreshingly clear. One short demo in particular stands out: CO₂ absorbing infrared heat. In just a few minutes, Stewart makes visible what we usually can’t see — that carbon dioxide traps heat energy. That supports the idea that CO₂ contributes to global warming.