In America we are reaching a point called peak oil. If you have not heard of this, peak oil is when we have mind so much oil that no matter how much oil we try to mine the rate in which we mine it will continue to go down. It will go down until the oil we put into mining oil is equal to the amount of oil we mine. If we have not already reached peak oil then it is coming very soon and when it does our economy which is built on oil, will crash. here is an artical and a chart on peak oil. http://www.lifeaftertheoilcrash.net/ . I just wanted to make shore that everyine is aware of this huge problem. Oh and hidrogen power wont save you