The Last Days of Mankind: Ecological Survival Or Extinction |
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Page 29
... feet of water a year and Arizona to 2,800,000 acre - feet a year . An acre - foot is the amount of water required to cover one acre of ground to a depth of one foot . Nevada was allowed 300,000 acre - feet , making a total of 7,500,000 ...
... feet of water a year and Arizona to 2,800,000 acre - feet a year . An acre - foot is the amount of water required to cover one acre of ground to a depth of one foot . Nevada was allowed 300,000 acre - feet , making a total of 7,500,000 ...
Page 31
... feet - would now be se- questered in dead storage behind Glen Canyon Dam . Moreover , the evaporation from newly created Lake Powell was estimated at 650,000 acre - feet , enough water to supply a city the size of Denver . Such was the ...
... feet - would now be se- questered in dead storage behind Glen Canyon Dam . Moreover , the evaporation from newly created Lake Powell was estimated at 650,000 acre - feet , enough water to supply a city the size of Denver . Such was the ...
Page 121
... feet high , but its trunk has a diameter of 34 feet and a circumference of 101 feet , 7 inches . It would take 17 men with outstretched arms , fingertips just touching , to encircle it . The weight of such a tree is anyone's guess , but ...
... feet high , but its trunk has a diameter of 34 feet and a circumference of 101 feet , 7 inches . It would take 17 men with outstretched arms , fingertips just touching , to encircle it . The weight of such a tree is anyone's guess , but ...
Contents
An Introduction | 9 |
Rivers Dams and Floods | 27 |
Water Pollution and the Great Water Shortage | 49 |
Copyright | |
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acres Agriculture Alaska alligators American animals bill birds building California Canyon cars chemical Congress conservation conservationists cost cougars created Creek damage decibels Department dieldrin Disney dumped East Meadow ecology Engineers environment Environmental estimated Everglades Everglades National Park expressway Federal feet fish flood Florida Forest Service gallons Governor harp seal Hickel highway Hudson hunters increased industry insecticides insects Interior Island jetport killed Lake Lake Okeechobee Lake Powell lumber companies miles million Mineral King mountain National Forest National Park natural Okeechobee oxygen Park Service percent pesticides plankton plant pollution population pounds predators problem proposed public lands recreation redwood reservoirs river road salmon Save-the-Redwoods League says Secretary Sequoia National Park sewage Sierra Club species spraying square miles stream supply timber tion traffic trees Udall Valley Vällingby wild wilderness wildlife wood York