News tagged with hydroelectric dam

Canada's unique wetlands under threat: report

Canada, which has the world's largest intact forest, must do more to protect the one-of-a kind natural treasure, which increasingly is under threat from large-scale industrial activity, a new report said Wednesday.

Mar 16, 2011
4.6 / 5 (5) 0

New system helps explain salmon migration

A new acoustic telemetry system tracks the migration of juvenile salmon using one-tenth as many fish as comparable methods, suggests a paper published in the January edition of the American Fisheries Society ...

Jan 08, 2010
5 / 5 (1) 0 | with audio podcast

Northwest salmon recovery plan may include breaching dams

In a case closely followed by environmental and business interests, a rewritten plan for restoring endangered and threatened wild salmon runs on the Columbia and Snake rivers in Washington state and Idaho includes studying ...

Sep 16, 2009
not rated yet 0

Turning the tide to energy

NASA researchers who developed a new way to power robotic underwater vehicles believe a spin-off technology could help convert ocean energy into electrical energy on a much larger scale. The researchers hope ...

Mar 06, 2009
3.4 / 5 (24) 6