The salmon of the Hiitolanjoki river can finally return to their ancestral spawning grounds after being blocked for more than a century by three hydroelectric powerplants.
A pioneering community-based hydroelectric energy project in the Brecon Beacons is a blueprint for how green energy can provide more than just low-carbon power...
Environmental groups say the Belo Monte dam project would devastate a large area of the Amazon rainforest and threaten the survival of indigenous peoples