That&#x27;s fine, but if CO2 didn&#x27;t cause problems and we wanted to reduce pollution, do it directly, not indirectly because indirect regulation almost always leads to screwed up incentives. (e.g. finding something that produces almost no CO2 as a side effect but tons of other pollutants).<p>It&#x27;s like banning Coca-Cola to reduce cavities so everyone just switches to Pepsi.