The Environment of America: Present/ Future/ Past: Selected Articles from a Variety of Sources ...Thomas C. Jones J. G. Ferguson Publishing Company; distributed to the book trade by Doubleday [New York, 1971 - Conservation of natural resources - 324 pages |
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Page 134
... amount that finds its way into the upper atmosphere and then to the arctic . In an area such as Chicago , where the output is very high , a great deal of it settles out in the city dust that covers the streets and gets into homes . The ...
... amount that finds its way into the upper atmosphere and then to the arctic . In an area such as Chicago , where the output is very high , a great deal of it settles out in the city dust that covers the streets and gets into homes . The ...
Page 155
... amount of water covering 1 acre to a depth of 1 foot . Converted into gallons , it amounts to 325,850 . It is estimated that in the seventeen Western States , waterwasting plants in- fest 15 million acres and suck up and transpire into ...
... amount of water covering 1 acre to a depth of 1 foot . Converted into gallons , it amounts to 325,850 . It is estimated that in the seventeen Western States , waterwasting plants in- fest 15 million acres and suck up and transpire into ...
Page 188
... amount of fish produced in the Unit- ed States waters of the Great Lakes fluctuates between 75 to 100 million pounds per year . This amount has remained relatively constant over the past eighty years . The recent changes that have ...
... amount of fish produced in the Unit- ed States waters of the Great Lakes fluctuates between 75 to 100 million pounds per year . This amount has remained relatively constant over the past eighty years . The recent changes that have ...
Contents
America the Beautiful | 9 |
a Faithful Steward? | 25 |
An Environment Fit for People | 44 |
Copyright | |
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acres agencies agricultural air pollution alewives American animals areas become birds Bureau Captain chemical cities coastal zone Commission conservation continue Creek crops dance earth ecological economic effects environment environmental farmers Federal feet fertility fish grouse growth human hundred hunter increase Indians industry insecticides insects INTERIOR killed Lake Michigan lake trout lamprey land lead leafhoppers lindane living major marine ment miles million minerals NATIONAL COAL ASSOCIATION National Forest NATIONAL PARK NATIONAL PARK SERVICE natural beauty ocean organisms percent pest pesticides pigeons planning plants population prairie present problems production protection rainbow trout recommend recreation regions river scientists sea lamprey SOCIETY OF COLORADO soil species streams timber tion trees trout U.S. DEPT U.S. FOREST SERVICE United UPI COMPIX urban waste water pollution Whooping Crane wild wildlife woods