QUOTE(OutlandishTrendz @ Nov 28 2004, 06:21 AM)
Energy Sapped earth? We dont even harness the full potential of the earth as is, wind and tide current can turn generators, so cut on the burning of coal. Ethanol can replace gasoline ie oil. Natural gas is the only thing I can think of that doesnt have a real replacement out there that i know of.
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Natural Gas is methane and it is being burnt in power stations, in part, as a substitute for coal and oil - at least in Britain that's the case - because it is cheaper than coal or oil and the power stations are cheaper to build. In this case any fuel used to generate electricity will substitute for it.
Preferably we need a fuel that is clean (no greenhouse gas emmisions or other airborne polutants), readily available and with minimal cleanup costs (environmental and financial). The only fuel that meets all of these criteria is hydrogen. The oceans are full of it and burning it only produces water.
Hydrogen fuel cells are already available but they are expensive and the power and fuel companies are dragging their feet in developing them for the mass market because it is still cheaper and more profitable for them to promote fossil fuels.
For mains power, hydrogen fusion is obviously the way to go. There are currently plans to build an international experimental fusion reactor, but the main governments in the main power blocks, the EU, US, Russia and Japan, can't agree where to build the thing.
While the oil, and fuel, companies control the development of alternative energy supplies things ain't gonna change. They will always choose the short term profits above the long term needs of the planet!
(And that will go for moon as well if they get their grubby fingers on it.)