A massive federal habitat restoration effort in the Columbia River Basin has spent more than $700 million on breaching levies, restoring tidal channels, reconnecting floodplains and other actions meant to boost salmon and ...
Ecology
Jun 21, 2015
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38
In 1913 in Southern California, two 241-mile-long electric lines began carrying power from hydroelectric dams in the Sierra Nevada to customers in Los Angeles—a massive feat of infrastructure. In 1923, power company Southern ...
Environment
Jun 4, 2015
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8
Researchers have developed a model to assess how dams affect the viability of sea-run fish species that need to pass dams as they use both fresh and marine waters during their lifetimes. NOAA's Northeast Fisheries Science ...
Ecology
May 21, 2015
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29
Researchers in the Philippines are using green engineering to develop a low-cost dam that aims to prevent flooding, generate electricity, and help end food and water shortages.
Engineering
Mar 23, 2015
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20
Fish no longer need to go under the knife to help researchers understand exactly how they swim through hydroelectric dams, thanks to a new injectable tracking device described in the journal Scientific Reports.
Ecology
Jan 29, 2015
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27
In the Pacific Northwest, young salmon must dodge predatory birds, sea lions and more in their perilous trek toward the ocean. Hydroelectric dams don't make the trip any easier, with their manmade currents sweeping fish past ...
Earth Sciences
Nov 5, 2014
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0
Researchers from INRA, Laval University in Quebec, CIRAD and the Université de Pau et des Pays de l'Adour have studied the impact of constructing passes that allow salmon to cross hydroelectric dams and recolonise newly ...
Ecology
Aug 27, 2014
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0
With the "green" reputation of large hydroelectric dams already in question, scientists are reporting that millions of smaller dams on rivers around the world make an important contribution to the greenhouse gases linked ...
Environment
Jul 31, 2013
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0
Theoretically, hydropower can step in when wind turbines go still, but barriers to this non-polluting resource serving as a backup are largely policy- and regulation-based, according to Penn State researchers.
Energy & Green Tech
Jun 25, 2013
1
0
President Mohamed Morsi Monday warned that Egypt would not allow its share of the Nile to be diminished by "one drop" after Ethiopia began diverting the Blue Nile as part of a giant dam project.
Environment
Jun 3, 2013
1
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