Bjorn Lomborg: Green Cars Have a Dirty Little Secret

[Valin]

WSJ

 

Producing and charging electric cars means heavy carbon-dioxide emissions.

Bjorn Lomborg

3/10/13

 

Electric cars are promoted as the chic harbinger of an environmentally benign future. Ads assure us of "zero emissions," and President Obama has promised a million on the road by 2015. With sales for 2012 coming in at about 50,000, that million-car figure is a pipe dream. Consumers remain wary of the cars' limited range, higher price and the logistics of battery-charging. But for those who do own an electric car, at least there is the consolation that it's truly green, right? Not really.

 

For proponents such as the actor and activist Leonardo DiCaprio, the main argument is that their electric cars—whether it's a $100,000 Fisker Karma (Mr. DiCaprio's ride) or a $28,000 Nissan Leaf—don't contribute to global warming. And, sure, electric cars don't emit carbon-dioxide on the road. But the energy used for their manufacture and continual battery charges certainly does—far more than most people realize.

 

(Snip)

 

To make matters worse, the batteries in electric cars fade with time, just as they do in a cellphone. Nissan estimates that after five years, the less effective batteries in a typical Leaf bring the range down to 55 miles. As the MIT Technology Review cautioned last year: "Don't Drive Your Nissan Leaf Too Much."

 

If a typical electric car is driven 50,000 miles over its lifetime, the huge initial emissions from its manufacture means the car will actually have put more carbon-dioxide in the atmosphere than a similar-size gasoline-powered car driven the same number of miles. Similarly, if the energy used to recharge the electric car comes mostly from coal-fired power plants, it will be responsible for the emission of almost 15 ounces of carbon-dioxide for every one of the 50,000 miles it is driven—three ounces more than a similar gas-powered car.

 

(Snip)

 

 

 

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It seems no matter what we do. No matter how righteous we feel about it. We just can't keep from adversely affecting the environment....Who Knew?

 

 

George Carlin...Language Alert

[nickydog]

Ah, ha! I always wondered about recharging electric cars.