A more useful unit of measure would be overall pollution emitted into the atmosphere for each mile driven.
A hybrid uses more energy in manufacture, where emmisions reduction equipment like scrubbers are able to limit pollution. A Hummer uses more energy on the road, where only a little catalytic converter is able to do anything with pollution, and that's only after it's had a chance to heat up.
I bet the Hummer pollutes more, even if it uses less energy overall, (a claim I'm skeptical about.)
The article is correct though, that
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Originally Posted by article
Hybrid vehicles' overall energy costs exceed those of comparable non-hybrids
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