A fundamental difference between Man and other animals is Man's ability to develop methods and devices that increase his energy supply far beyond what his muscles can provide. Whereas early man consumed about 2000 calories per day, the average US citizen currently uses about 200 000 calories daily. This tremendous increase in energy consumption affects our life style not only in degree but also in kind. We can no longer treat energy as a subject in physics alone but must consider it as a social force.

1.
The American Almanac: The Statistical Abstract of the US Department of Commerce, Grosset and Dunlap, New York (1970).
2.
National Power Survey, A Report by the Federal Power Commission, US Government Printing Office, Washington, D.C. (1964).
3.
P. H.
Rose
,
Science
170
,
267
(
1970
).
4.
R. S. Morse and others, The Automobile and Air Pollution, US Government Printing Office, Washington, D.C. (1967).
5.
V. E. MeKelvey, “Contradictions in Energy Resource Estimates” in Energy, Northwestern U.P., Evanston, Illinois (1968), page 13.
6.
H. Lane, private communications.
7.
The Climate of the Cities, US Government Printing Office, Washington, D.C. (1969).
8.
A. B. Cambel, “Energy for a Restless World,” in Science and Technology in the World of the Future, (A. B. Brownell, ed.) Interscience, New York (1970).
9.
A. B.
Cambel
, “
Ecological Aspects of the Affluence and Effluents of Energetics
,”
Archives of Environmental Health
18
,
276
, Feb.
1969
.
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