Large dams can affect local climates, says new study

(PhysOrg.com) -- Large dams could have the potential to significantly alter local rainfall in some regions, according to a team of researchers including Roger Pielke Sr., of the Cooperative Institute for Research in Environmental ...

America's new wonder: a record-breaking bridge

America's greatest technological achievement, the Hoover Dam, now has a soaring companion piece, a massive looming bridge held up by the longest arch in the Western Hemisphere.

New research questions hydroelectric emissions

Scientists have found that some reservoirs formed by hydroelectric dams emit more greenhouse gases than expected, potentially upsetting the climate-friendly balance of hydroelectric power.

Manure could fuel data centers, HP scientists say

Giving new meaning to the term "server farm," a team of Hewlett-Packard researchers has come up with a plan for combining cow chips and computer chips to build an environmentally friendly data center -- powered by manure.

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 journal Fisheries. ...

China says planning more dams on troubled Yangtze

China will build at least 20 more reservoirs or hydroelectric projects in the Yangtze river system by 2020, the government said Tuesday, despite growing concerns over dam construction there.

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 that clean, renewable ...

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