Peak oil my friend, peak oil. http://en.wikipedia.org/wiki/Peak_oil And whether or not you believe that man causes global warming, I'm sure you'd love to not have those ozone alert days in July & August. Gotta pay for those highways. And markets don't always fix problems. I know people love to think this and I don't blame them, but history simply tells us different. Yes...and no. I think the idea that oil companies want to "supress" better technologies is a bit of a fallacy, but I understand the logic behind it. When NASA sent its global warming report & findings to the white house a couple of years ago they were edited by an undersecretary of energy. Not only did the edit, but they completely re-wrote the report as to pretty much can the idea that humans were a possible cause of global warming. I mean, an undersecretary of energy is arguing with NASA. NASA!? Now that may not mean much, but now this same former undersecretary is a lobbyist for Exxon Mobile. Hmmmm....makes you wonder. However it doesn't make sense to me why oil companies would supress the technologies because if they're smart they'll start investing in those alternatives to they can make their money elsewhere. I mean if Apple just stuck to making MAC's they'd be out of business by now. Better product how? In terms of fuel for vehicles? Wind & Solar are excellent for home & industrial use, hell the new solar power technology is amazing. Hydrogen is extremely efficient once its inside the vehicle doing its work. But the problem is finding hydrogen in its pure form. In order to seperate the hydrogren from oxygen in water molecules it requires more energy input than output. Currently that's the case, but hopefully in the future that will change. I do. And all of my power comes from Green Mountain Energy. Yes. And of all places, those darned 'liberals' at 60 minutes did a piece of this a few weeks ago.