Bulgaria is banking more and more on hydroelectric power. It's already authorized the construction of 300 new dams. But environmental organizations say these will destroy valuable ecosystems and won't produce much electricity either.
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We need to address the cost of economic development to the environment, societies and our health when measuring human progress, says Achim Steiner of the UN Development Program.
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.
Pakistan has accelerated work on a number of hydropower projects in the Kashmir and Gilgit-Baltistan regions. But many locals oppose the projects and say they are being built on disputed territories. S Khan reports.
The Mekong River is a lifeline to many communities in Southeast Asia. But an ongoing drought and dozens of hydroelectric power plants are lowering water levels and damaging a fragile ecosystem.
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