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It has been a common belief that low-emissions vehicles, like hybrids and electric cars, are more expensive than other choices. But a new study finds that when operating and maintenance costs are included in a vehicle's price, cleaner cars may actually be a better bet.


The cars and trucks we drive are responsible for about a fifth of greenhouse gas emissions in this country. That's why 

, an energy scientist at the Massachusetts Institute of Technology, decided it was time to take a closer look at vehicle emissions.


"The question that we started with was, 'How do cars, how do personal vehicles, compare to climate targets?' " Trancik says.

She and her colleagues wanted to know which of the 125 most popular cars in the U.S. are both cost-efficient and climate-friendly.

with some surprising results about the cost of cleaner cars.


"You don't actually have to pay more for those lowest-emitting vehicles," says Trancik.


And they found that some cars on the market — most hybrid and battery electric cars — already meet the global emissions goals the U.S. recently 

 by the year 2030. This group includes cars like the Ford Focus Electric, Chevrolet Volt, Nissan Leaf, Toyota Prius, Tesla Model 3 and BMW i3.


It's a sliver of good news, which is rare when talking about climate change.

But, says Trancik, "The average car sold is about 50 percent above the 2030 target. So, there certainly is a disconnect between the kind of cars people are buying and where we need to get by 2030."

The Chevrolet Suburban, for example, falls on the other end of the chart — with high lifetime costs and greenhouse gas emissions well above the American average.


And there's a bigger gap in terms of the goals set for 2050, says 

, who directs transportation research at the National Renewable Energy Laboratory in Colorado.


"I come to work every day because I think that getting greenhouse gas emissions out of the transportation sector is one of the most important things that we can work on," Gearhart says.

He says Trancik's work is exciting because it clearly shows how individual choices can make an impact.

"And you don't have to have a bank account that can afford a Tesla," he says.

 to do.
Right now, U.S. cars emit enough greenhouse gases per year to fill more than 700,000 Empire State Buildings. To meet 2050 goals, we'd have to reduce that volume to about 150,000 Empire State Buildings.  Copyright 2019 NPR. To see more, visit https://www.npr.org.

Environmental News

Rae Ellen Bichell

Author

It has been a common belief that low-emissions vehicles, like hybrids and electric cars, are more expensive than other choices. But researchers at MIT have found otherwise.

It may not cost you more to drive home in a climate-friendly car

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