Remove dam, help fish

Delaware Sea Grant's Ed Hale has been conducting seine net surveys of Wilmington's Brandywine Creek every two weeks since mid-July, engaged by a coalition of groups supporting the removal of the waterway's dams up to the ...

Taking stock of salmon survival, dams and science

Federal agencies required a minimum criteria of 96 percent of spring-migrating and 93 percent of summer-migrating juvenile salmon had to survive passage over Lower Granite Dam, located in southeastern Washington. Because ...

Five questions about Ethiopia's controversial Nile dam

Ethiopia said this week it had hit its first-year target for filling the Grand Ethiopian Renaissance Dam, a concrete colossus 145 metres (475 feet) high that has fuelled tensions with downstream nations for nearly a decade.

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