A financial, climate, and health win-win-win
Adding it all up, the EPA estimates that its rules will save about $1.6 trillion in vehicle costs, climate damages, and health impacts between 2027 and 2055. Updating the social cost of carbon would boost those savings to well over $2 trillion, and as noted by Shindell, the health savings could also be substantially higher than EPA’s estimates, raising the rule’s total benefits close to $2.5 trillion.
https://yaleclimateconnections.org/2023/05/epas-car-pollution-rules-would-save-americans-trillions-of-dollars/