KPIX CBS Evening News With Norah ODonnell August 6, 2021 01:39:00
Environmental protection agency. today it proposed stricter new emissions standards for cars and trucks designed to force auto- makers to build and sell more electric cars. >> we're ushering in new advanced technologies that will not only increase and enhance performance but also reduce climate pollutants and health- based pollutants. >> reporter: in the united states, transportation is the single largest source of planet warming greenhouse gas emissions. e.p.a. claims the new clean car standards would avoid 2.2 billion tons of carbon emission from vehicles by 2050. but with the impacts of cli...