Results 91 - 100 of 121
Q & A: Vinton Cerf
Vice president of engineering and chief evangelist at Google on the connected world in 2050 (05:27)
Dust and Snowmelt in the Colorado Mountains
Scientists find the effect of dust on mountain snowpack can be the dominant driver of snowmelt and water supplies downstream, an important discovery for water managers in the drying Southwest (2:43)
Grand Canyon Uranium Mining
With hundreds of new uranium mining claims filed within just a few miles of Grand Canyon National Park, a proposed new law would close the area to mining development and prevent radioactive contamination from discharging into the park (3:01)
Protecting Montana's Wildlife
With government support, a huge land purchase by conservationists protects prime habitat for grizzlies, mountain lions and other sensitive species (2:51)
Protecting Montana's Forests
The Montana Legacy Project buys 310,000 acres of prime timber holdings to prevent real estate development and save the lands for public use and sustainable forestry (2:39)
Nuclear Power Confronts Scarce Water
In Utah, a proposed nuclear power plant would depend on huge amounts of water from the Green River (02:54)
Gas Drilling Supports Conservation
To offset the environmental impact of their drilling in Wyoming's gas fields, energy companies are funding mitigation projects like conservation easements to protect habitat needed by wildlife (02:52)
Subsonic Boom
Researchers say they now understand the mysterious boom that can emanuate for miles from sand dunes. Avalanching sand (02:02)
Rural Sprawl
A global historical reconstruction of changes in cultivated land from 1700 to 1990 (00:34)
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Energy of the Future(1:46) |
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The Largest Machine Ever Built(1:45) |
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How to Build a Windfarm(1:51) |
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An Icon of American Ingenuity(3:32) |
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