Most decisions are made with cash (or charge). So far, too many schemes focus on one scapegoat while the culprit gets away with murder. In the case of climate, everyone is focusing on carbon but the real culprit is unfettered consumerism that encourages people to buy cheap goods instead of producing useful needed resources for themselves.
Fossil fuel is just the lubrication for a system of war against nature itself. Banning fossil fuels won’t stop that mindless war, even if it could be done (we still have to try it, too). We have to stop the mindlessness to stop the war. That means fighting everything from sports fans to blind nationalism to religion.
Still have hope? Think about every gas fillup people make. They’re hoping, too.