An electric charging station is seen on Tuesday, June 18,
2013 in Montpelier, Vt. (Toby Talbot/AP)
2013 in Montpelier, Vt. (Toby Talbot/AP)
Plug-in electric cars have lower greenhouse gas emissions than the average gas-guzzling vehicle.
But if you look at the environmental impacts over the car’s life cycle — from manufacturing, powering and, eventually, retiring them to the junkyard — the electric car’s environmental merits are greatly diminished.
Conservationist Ozzie Zehner argues in a piece called “Unclean at Any Speed“ that electric cars may be worse for the environment than traditional gas-powered cars.
Zehner, who is also author of the 2012 book “Green Illusions: The Dirty Secrets of Clean Energy and the Future of Environmentalism,” writes in IEEE Spectrum magazine:
When the National Academies researchers projected technology advancements and improvement to the U.S. electrical grid out to 2030, they still found no benefit to driving an electric vehicle. If those estimates are correct, the sorcery surrounding electric cars stands to worsen public health and the environment rather than the intended opposite. But even if the researchers are wrong, there is a more fundamental illusion at work on the electric-car stage.
Don Anair, co-author of the Union of Concerned Scientists 2012 report “State of Charge” offered this response to Zehner’s article:
Powered by today’s electricity grid, operating an electric vehicle produces less global warming emissions than the average new compact gasoline vehicle (averaging 27 mpg) everywhere in the country. In regions with the cleanest electricity grids, electric vehicles out perform even the best hybrids. And factoring in estimates of global warming emissions from manufacturing reduces, but doesn’t negate the benefits of EVs, as I illustrate in the following blog post.
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