U.S. looks to Spanish high speed rail as model

Being car free

Pedaling love

Pedaling love 5/29/2009

Camry's hybrid makes the grade

Flying the eco-friendly skies

Video: Jon Stewart on the new car regulations

Video: Obama announces historic new car standards

Video: Meet the Karma hybrid

Video: Obama's energy czar on new car standards

Charging electric cars, guerrilla style

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