The "Clean" part is about done even with fossil fuels. The hard part is that the infrastrucure is in place to use gasoline and deisel, and not for others. The hybrids will be popular but may not fly yet. Biggest problem as I see it is we use too damn much fuel and don't make what we need!! Hydogen can be made from water. Trouble right now is as said it takes more energy to get it out of water than it can produce. It's also wicked explosive and that needs to be addressed. Remember the "Hindenburg"? A silly BB gun could bring something like that down. Let's use the education we have invested so heavily in to solve this.
For right now - use as little fossile fuel as you can. Most of us can cut back some, Be well, T
Tom Greenleaf - MetroWest Boston - USA
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http://www.autoacsystems.com/tomgreenleaf/