EVs: Clean Today, Cleaner Tomorrow

摘要

The debate about electric vehi-cles (EVs) often revolves around whether increased smokestack emissions—from the power plants generating the electricity needed to recharge all those EV batteries—will offset the reduction in pollution from tailpipes. Such analyses usually overlook a critical factor, however: gasoline cars tend to get dirtier and dirtier over time, while electric power plants do not.