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For human development to continue, we will ultimately need to find sources of renewable or virtually inexhaustible energy. It is difficult to imagine this but even if we find several hundred or thousand of years of oil, coal, and natural gas supplies, what will happen when they are depleted? Even the most apparently "inexhaustible" sources like fusion involved the generation of large amount of wasted heat (energy) -enough to place damaging stress on even a robust ecosystem like Earth's
We are engaged in a sort of world wide biological experiment, with our descendents as the subjects.
There is a lot of underlying popular support for wind energy and the other renewables in the U.S. but there is a lot of apathy as well. We are blissfully sedated by low conventional energy prices and are gulping down the few remaining years of cheap natural gas and crude oil. As we do this, the inertia of global warming are quickly building.
THE HISTORY OF WIND POWER
The history of wind power shows a general evolution from the use of simple, light devices driven by aerodynamic drag forces; to heavy, materials-intensive drag devices.
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