Dr John Constable of NetZero Watch narrates a physics film on how civilizations depend on the availability of energy. Not just any energy like the faint breezes of wind or the warming rays of solar but on the concentrated energies of fossil fuels and nuclear. The laws of physics demand a constant diffusion of energy and matter from order to disorder. Life and civilization can only exist in localized pockets of increasing order using available high quality energy. Our increasing displacement of concentrated energy sources with diffuse weak sources will be the slow yet accelerating destruction of civilization.
Entropy is a bitch
Scico 
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