Driving an EV Is Getting Greener, Especially in the U.S.

BERLIN—Electric cars are only as clean as the power they use to charge their batteries, and how clean that is varies greatly from country to country, according to an analysis of data on power-sector emissions in 2022. 

Car sales around the world show more people buying electric vehicles that emit no climate-warming CO2 when they are driven around. But the impact of an electric vehicle replacing a traditional, combustion-engine car on overall emissions depends on how the power used to charge the car’s battery is produced.