[traviskicks]

Here is their report. I browsed through it. Interesting.
http://www.rppi.org/ps322.pdf

[Timm]

Thanks. Ignore my last post!

[calcowgirl]

http://www.rppi.org/ps322.pdf

Thanks for posting the link to the full report. Interesting analysis indeed.

Even when one considers the example of the “Hydrogen Hummer,” the actual impacts are different than the assumed effects. Using prior results, a simple calculation shows that a Hummer H2 with a curb weight of 6,400 lb will produce just over 600 pounds of CO2 per 300 miles driven.17 The same vehicle outfitted with a hydrogen fuel cell will be roughly 1,000 pounds heavier. Adding 50 horsepower to give the fuel-cell version the same performance as the stock Hummer results in 740 pounds of CO2 per 300 miles driven, a 20 percent increase over a stock gasoline-powered Hummer.