In the Pacific Northwest, the conversation about hydroelectric dams is complicated: Dams hamper the natural migration of salmon, yet they are an important source of cheap, renewable energy for the region.
Environment
Dec 14, 2017
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The Pantanal in central South America may not be as globally famous as the Amazon rainforest, but it has the continent's highest concentration of wildlife. Now, however, the region's endangered plants and animals, along with ...
Environment
Nov 7, 2017
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39
A new WWF and Mamirauá Institute for Sustainable Development report, released on 30 August, reveals that a new animal or plant species is discovered in the Amazon every 2 days, the fastest rate to be observed this century. ...
Environment
Aug 31, 2017
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A 16th century church submerged in a southern Mexico dam project 49 years ago has reappeared following a severe drought, drawing visitors by boat to gaze at the spectacular ruins.
Archaeology
Oct 23, 2015
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30
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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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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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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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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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
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(Phys.org) —Over the last several years, state agencies and environmental nonprofit organizations have targeted dam removal as a way to quickly improve the health of aquatic ecosystems. Dams keep migratory fish from swimming ...
Environment
May 30, 2013
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