Hydrogen Could Power Big Rigs

*dream about if the car have 1 million mpg.. it would be very nice * LOL! i agree foxrac , jiro, purplecatty.. good job to discuss in the nice way!
 
a strange coincidence! last week TIME magazine's front cover -

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America's Untapped Energy Resource: Boosting Efficiency
This may sound too good to be true, but the U.S. has a renewable-energy resource that is perfectly clean, remarkably cheap, surprisingly abundant and immediately available. It has astounding potential to reduce the carbon emissions that threaten our planet, the dependence on foreign oil that threatens our security and the energy costs that threaten our wallets. Unlike coal and petroleum, it doesn't pollute; unlike solar and wind, it doesn't depend on the weather; unlike ethanol, it doesn't accelerate deforestation or inflate food prices; unlike nuclear plants, it doesn't raise uncomfortable questions about meltdowns or terrorist attacks or radioactive-waste storage, and it doesn't take a decade to build. It isn't what-if like hydrogen, clean coal and tidal power; it's already proven to be workable, scalable and cost-effective. And we don't need to import it.

This miracle juice goes by the distinctly boring name of energy efficiency, and it's often ignored in the hubbub over alternative fuels, the nuclear renaissance, T. Boone Pickens and the green-tech economy. Clearly, it needs an agent. But it's a simple concept: wasting less energy. Or more precisely, consuming less energy to get the same amount of heat for your shower, light for your office and power for your factory. It turns out to be much less expensive, destructive and time-intensive to reduce demand through efficiency than to increase supply through new drilling or new power plants. A nationwide push to save "negawatts" instead of building more megawatts could help reverse our unsustainable increases in energy-hogging and carbon-spewing while creating a slew of jobs and saving a load of cash.
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There are two basic ways to save energy without deprivation or daily effort. We can use more efficient machinery, like fuel-efficient cars that guzzle less gas, or those pigtailed compact fluorescent lightbulbs that use 75% less power than traditional bulbs, or state-of-the-art refrigerators that are three times as efficient as 1973 models. We can also use machinery more productively. That can be as simple as insulating pipes and ducts, caulking doors and windows and otherwise weatherizing our homes to avoid heating our attics and the outdoors. Or installing motion sensors and programmable thermostats that turn out lights and air conditioners when no one's in the room. President-elect Barack Obama noted on the campaign trail that if we all just properly inflated our tires and maintained our engines, we could save as much oil now as new offshore drilling would produce by 2030. And since buildings devour two-thirds of our power, commercial and industrial operations can weed out even more waste through green construction and automated systems that practically import power as needed. "We've hit rock bottom in our addiction to fossil fuels," says Ian Bowles, Massachusetts energy and environmental affairs secretary. "We need an intervention, and energy efficiency is it."
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**Front cover of TIME magazine is an energy-efficient fluorescent light wearing a sweater. the big print says - "Why we need to see the light about energy efficiency?"
 
I heard that Post Office in California already have Hydrogen Fuel powered Delivery vehicles that they're currently using it now.

Catty
 
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