Schwarzenegger's Green Hummer

"...With much Earth Day fanfare, Schwarzenegger signed an executive order officially paving the way for his Hydrogen Highways program. 'This looks kind of like a movie set here, right?' the celebrity governor joked, after climbing out of a hydrogen-powered Toyota Highlander and fueling it at a new, experimental pump at the University of California-Davis... It's highly debatable, though, whether Schwarzenegger's Green Hummer plan would actually serve the larger environmental good. Any clean-energy stickler will tell you that the idea of putting a hydrogen-powered engine into the biggest, heaviest consumer SUV on Earth -- as opposed to a lightweight vehicle that requires far less horsepower -- is both counterintuitive and astronomically expensive."