The EPA says the industry could meet the limits if 67% of new-vehicle sales are electric by 2032, a pace the auto industry calls unrealistic.
However, the new rule would not require automakers to boost electric vehicle sales directly. Instead, it sets emissions limits and allows automakers to choose how to meet them.Sign up for NBC Philadelphia newsletters.
Though a panel of United Nations scientists said in March that there was still time to prevent the worst harm from climate change, the scientists said the world would need to quickly cut nearly two-thirds of carbon emissions by 2035 to avoid weather that is even more extreme. The council has calculated that carbon dioxide pollution from passenger vehicles would have to drop to 57 grams per mile by 2030 to reach the Paris goals. The EPA’s preferred regulation would cut those emissions to 102 grams per mile by 2030 and to 82 by 2032.
As the biggest source of pollution in the United States, transportation generates roughly 29% of heat-trapping greenhouse gas emissions, according to the EPA. Passenger vehicles are by far the worst transportation polluters, spewing 58% of that sector’s greenhouse gas pollution. Dave Cooke, a senior vehicles analyst for the Union of Concerned Scientists, said that even with slow vehicle turnover, studies show the EPA’s proposal would be an important step toward a zero-carbon transportation system by 2050. In addition, power plants that fuel EVs, he noted, will be converted to renewable energy such as wind and solar.His group is among those pushing the EPA for more stringent standards than the agency is pursuing.
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