Undamming Rivers: A Chance  For New Clean Energy Source

Undamming Rivers: A Chance For New Clean Energy Source

elwha-dam
Elwha Dam removal, 2011. The largest dam-removal project in U.S. history—the Elwha River Restoration Project—commenced during the second week of September 2011, when National Park Service contractors began to dismantle two dams on the Elwha River in Washington State. The 32-m-tall Elwha Dam and the 64-m-tall Glines Canyon Dam, completed in 1913 and 1927, respectively, have been blocking the natural supply of sediment to the lower river and coast and severely limiting salmon and steelhead spawning for nearly a century. Captions: Jonathan A. Warrick / USGS. Photograph: © SAF – Coastal Care.

Excerpts;

Hydroelectric power is often touted as clean energy, but this claim is true only in the narrow sense of not causing air pollution. In many places, such as the U.S. East Coast, hydroelectric dams have damaged the ecological integrity of nearly every major river and have decimated runs of migratory fish.

This need not continue…

Read Full Article, Yale E360

1000 Dams Down and Counting: Dam Removal Study Reveals River Resiliency, USGS (05-02-2015)
More than 1,000 dams have been removed across the United States because of safety concerns, sediment buildup, inefficiency or having otherwise outlived usefulness. A paper published in Science Magazine finds that rivers are resilient and respond relatively quickly after a dam is removed…

Elwha, The Grand Experiment (11-12-2012)

“River Reborn: Elwha Flows Wild and Free Once Again,” NBC News
A construction crew on Tuesday detonated a large charge of dynamite, destroying the last remaining portion of Glines Canyon Dam and hastening the restoration of the Elwha River in the far reaches of the Pacific Northwest.

Movement to Take Down Thousands of Dams Goes Mainstream, National Geographic (01-29-2015)

12 Dams that Changed the World, Guardian UK (01-13-2015)

New Global Warming Culprit: Dams
Washington State University researchers have documented an underappreciated suite of players in global warming: dams, the water reservoirs behind them, and surges of greenhouse gases as water levels go up and down.

DamNation; a Documentary That’s Testing the Waters of Corporate Social Responsibility; Produced by Stoecker Ecological and Felt Soul Media” and presented by Patagonia.

Dams – Cutting off our Beach Sand; By Gary Griggs (12-19-2014)

Coastal Care

Related Posts

How to design continents for maximum tides

How to design continents for maximum tides

First direct evidence of ocean mixing across the Gulf Stream

First direct evidence of ocean mixing across the Gulf Stream

Rising water temperatures could endanger the mating of many fish species

Rising water temperatures could endanger the mating of many fish species

Jellyfish the size of dinner plates are welcoming visitors to Northeast beaches

Jellyfish the size of dinner plates are welcoming visitors to Northeast beaches

SAF Video

Beach of the Month

Photo of the Month

Plastic Pollution

Sand Wars – United Nations-GEA

Sand Mining Detrimental Effects

The World’s Beaches

Coastal Care Junior

NASA – Fly along with NASA’s fleet of Earth science missions and observe Earth from a global perspective in an immersive, 3-D environment.