If anyone has seen the modern marvels on solar technology, there is a segment on there about how much surface area we would have to cover in Nevada in order to power the entire United States with power. It is somewhere around a fifth of the state. With the new advancements in solar technology coupled with other alternative energy sources we should easily be able to power the country far into the future. The lower we drive down the cost of energy the less it is going to cost to do things like desalinization, creating hydrogen for fuel, cleaner manufacturing processes, reduce pollution, and countless other positive goods for society. The reason that is always quoted is that we don't have enough money or the returns on investments aren't high enough. This may be true but if it is so good for us, why can't we all just invest a hundred bucks and solve the problem? Go to the IPCC and check out the first presentation. Page 22 of this presentation that shows a graph of the money spent on energy technology. If we hadn't wasted all the money over the last 30 years on fossil fuels and nuclear we could have the entire United States powered. The problem lies in the wrong people getting our money and using it to further interests that don't reflect the public.