Hydroelectric power plants can provide green energy, but often harm the fish that live in the water. Many of them die passing through the turbines. Now researchers are working on a robot fish that could save its real-life counterparts.
As the reservoir behind a new dam on the Nile River fills up, DW examines the ways such mega-dams hurt the environment, and looks at a few alternatives.
Countries in the Western Balkans are funding old coal power plants with millions of euros as locals protest against hydroelectric power plants. Nevertheless, environmental activists see signs of hope on the horizon.
Mini hydropower plants are springing up all over the small Balkan state of Montenegro. The government says it's part of a renewables drive but activists and locals argue the plants are destroying their "lifeline."
President John Magufuli defended the construction of the dam in Stiegler Gorge. Critics fear it could herald the end of the Selous Game Reserve which is home to a wealth of flora and fauna.
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