By 1990, the U.S. will probably have about doubled its present energy consumption. Domestic oil and natural gas, which today account for two-thirds of the nation's energy, will be able to meet only 40% of demand. Nuclear, hydro, solar, geothermal and other nonfossil fuel sources will take care of another 20%. To fill the remaining 40% gap, the nation faces two likely choices. It can import much more oil and gas—and pay heavily in terms both of balance of payments and political dependence on foreign countries. Or it can turn to coal, which...
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