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World’s Largest Dam Removal Unleashes U.S. River After Century of Electric Production

World’s Largest Dam Removal Unleashes U.S. River After Century of Electric Production | social geography | Scoop.it
The last section of dam is being blasted from the Elwha River on Washington's Olympic Peninsula on Tuesday.

 

For almost half a century, the two dams were widely applauded for powering the growth of the peninsula and its primary industry. But the dams blocked salmon migration up the Elwha, devastating its fish and shellfish—and the livelihood of the Lower Elwha Klallam tribe. As the tribe slowly gained political power—it won federal recognition in 1968—it and other tribes began to protest the loss of the fishing rights promised to them by federal treaty in the mid-1800s. In 1979, the U.S. Supreme Court ruled that Washington tribes, including the Elwha Klallam, were entitled to half the salmon catch in the state.


Via Seth Dixon
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Seth Dixon's curator insight, September 9, 2014 1:16 PM

See also this video to see the rapid changes on the nearby White Salmon River when they removed the dam. 


Tags: biogeography, environment, land use, sustainability, environment adapt.

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NASA animation of temperature data from 1880-2011

Tags: video, environment,  visualization, climatechange, environment modify. 


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Full Extent of Africa’s Groundwater Resources Visualized for the First Time

Full Extent of Africa’s Groundwater Resources Visualized for the First Time | social geography | Scoop.it

Until now, there has been a lack of solid, comprehensive spatial data about African groundwater resources.  Researchers have now done so.  For a more academic article on the subject, here are their findings in Environmental Research Letters. 

 

Tags: water, Africa, resources, physical, environment, environment depend.    


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