Clean tech that is renewable, continous, and CO2 free (yah yah, shipping and maintaince truck driving aside) without any waste to bury for 20000 years.

Solar
Wind
thermal
Ocean tide
Hydro

Add in some things like biogass (decomposting plant matter and animal wastes) which are a natural biproduct of our lives and basically akin to finding new revinue streams for used products, and we can generate alot of energy without generating really any more CO2.

The reason Pickens and his buddies want to transition to CNG is to keep the current energy buisness plan. A true hybrid is murder to Chevrons current buisness. They want another constant, dependable, and perpetually increasing revenue stream (natural population growth) for buisnesses. Plus, people fork over alot of money on overpriced crap when purchasing gas.

Imagine if we had a true plug in hybrid, where you could get say, 50-100 miles on a charge, before an efficient gasoline powered engine kicked in for the 15 times a year you actually needed it. Our oil supplies would last us hundreds of years, and these people would no longer be the uber rich of the world.