Where, Oh Where is All the Clean Air?
Theodore Parker Sr.
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Solar and geothermal energy are being studied and experimented with as non-polluting energy sources for the future because it has become apparent that attaching soot precipitators to industrial chimneys or exhaust converters to gasoline engines is not enough. Researchers must think in terms of new kinds of fuels, new methods of producing energy and possibly a system of rationing the use of energy and natural resources. Industrial giants geared to petroleum production, the manufacture of automobiles and the building of highways offer tremendous resistance to such changes. They persist in wasteful practices.