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Prius a terrible polluter?

March 23, 2007

Thanks to subscriber Charles Thompson for sending in me a fascinating article arguying that the Hummer pollutes less than the Toyota Prius hybrid once you factor in manufacturing. One major environmental culprit, the article argues, is the pollution from smelting the nickel for the Pruis' nickel metal hydride batteries. Nickel smelting is a nasty business, but batteries represent a fraction of nickel's uses. After all, it's an ingreident in common stainless steel. The article also questions the Pruis' 61/51/55 mpg claims, concluding that a Chevy Aveo and Scion xB are much better bargains and kinder to the environment..

It's a good read even if some of its assumptions are suspect. I'd be curious at Toyota's response. I think I'll send it to them.

Posted by John Dodge on March 23, 2007 | Comments (6)

December 21, 2007
In response to: Prius a terrible polluter?
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July 13, 2007
In response to: Prius a terrible polluter?
Resoh02 commented:

I guess you can make up any story you want about the prius, I own one and I love it. I am getting 51mpg over all. As far as mph posted on the sticker what car gets whats on the sticker. I don''t have any evidence that the Prius creates more air pollution than the Hummer, I do know the tail pipe opening on the hummer is bigger that my Prius. Whats the purpose of buying a hummer anyhow, they are a box on wheels. When has the Military designed anything that looks good.


May 21, 2007
In response to: Prius a terrible polluter?
DAN commented:

Two words this article lacks, "common sense". Obviously if GM continues with this kind of non-sense our Grandchildren will read about them in their history books.


March 28, 2007
In response to: Prius a terrible polluter?
John Dodge commented:

Curt, You raise valid points. The one thing in the report that for sure sounded credible to me is that the Chevy Aveo and Scion xB might be better bargains and just as green.


March 26, 2007
In response to: Prius a terrible polluter?
Piense El Tanque commented:

Someone tell Al Gore! He needs to do some more if he wants to stay carbon neutral. That is if this "study" is accurate.


March 26, 2007
In response to: Prius a terrible polluter?
Curt Wilson commented:

The "study" cited in the article doesn't even pass the laugh test. It hit the blogosphere a couple of months ago, and people immediately found ridiculous holes in it. For example, it confuses the 100K mile warranty on the Prius battery with expected lifetime. (If you have a 60K mile warranty on your drive train, do you think the typical lifetime is only, say, 65K miles?) And do you really expect a GM vehicle to have 3x the lifetime of a Toyota? Do some simple math. The study claims costs of $3.25 per mile for the Prius over its 100K mile lifetime -- $325,000 total. Take a $30,000 purchase price (high) and 2500 gallons of gas (assuming only 40 mpg) at $3 a gallon, for $7500. Other operating costs could take you up to $50,000 tops. As one Prius owner wrote, "Who do I write to to thank for subsidizing me for over a quarter of a million dollars?" By the way, the same study claims the H3 is far more cost-effective than a VW Golf, which should be a real reality check. There are legitimate questions to ask about whether the hybrid technology is a net gain. Unfortunately, this article and the study it is based on take us further away from getting real answers to those questions.

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