Pamphlets on Conservation of Natural Resources, Volumen18U.S. Government Printing Office, 1909 |
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Página 232
... population and our growing appetite for material goods . The United States is now using up natural resources faster than man , science , and nature together are creating them . In the last fifty years alone , while our population has ...
... population and our growing appetite for material goods . The United States is now using up natural resources faster than man , science , and nature together are creating them . In the last fifty years alone , while our population has ...
Página 243
... population ; the two main sources of pollution are industrial and municipal wastes and sewage . Most of our great rivers are contaminated as are many of our once clear streams . Even the Great Lakes are not free of pollution . Many of ...
... population ; the two main sources of pollution are industrial and municipal wastes and sewage . Most of our great rivers are contaminated as are many of our once clear streams . Even the Great Lakes are not free of pollution . Many of ...
Página 244
7. In view of our increasing population and expanding industry , both potential sources of pollution , should more stringent regulations be imposed upon municipalities and industries to compel them to treat their waste products properly ...
7. In view of our increasing population and expanding industry , both potential sources of pollution , should more stringent regulations be imposed upon municipalities and industries to compel them to treat their waste products properly ...
Página 250
... population of the United States by 1975 . This would represent an increase of 55 million over our present ( 1955 ) numbers , or more than the equivalent of the present population of the United Kingdom and Ireland . Today we have ...
... population of the United States by 1975 . This would represent an increase of 55 million over our present ( 1955 ) numbers , or more than the equivalent of the present population of the United Kingdom and Ireland . Today we have ...
Página 254
... population . The advent of mod- ern farm machinery has greatly reduced the number of farm hands needed to do the work , and has greatly expanded the acreage which can be farmed successfully by an individual . The economics involved ...
... population . The advent of mod- ern farm machinery has greatly reduced the number of farm hands needed to do the work , and has greatly expanded the acreage which can be farmed successfully by an individual . The economics involved ...
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Términos y frases comunes
acres agencies Agriculture annual areas bill boys Bureau CAGNEY camp Chairman Civilian Conservation Corps Commission committee Congress conservation movement Construction cooperation coordination cost Council delinquency Department Douglas-fir economic enrollees existing facilities Federal Government fire Forest Fire forest land FOREST PROTECTION Forest Service forestry Gifford Pinchot Governor habitat important improvements increase industry Insect and Disease interest Interior January 26 juvenile Kalamazoo River labor legislation Maintenance Management and administration ment miles million acres mineral national forests national-forest natural resources organization parks percent plans planting population present President problems production proposed recommendations recreation Reforestation regional resource development Resource Management Resources and Conservation responsibility river roads and trails Senator CLARK Senator Humphrey SENATOR MURRAY Senator RANDOLPH Silviculture statement streams surveys Theodore Roosevelt Timber purchasers tion U.S. Senate United utilization Washington watershed welfare wildlife young Youth Conservation Corps