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McGill University: Over 260,000 kilometres of rivers at risk due to proposed hydro dams

McGill University: Over 260,000 kilometres of rivers at risk due to proposed hydro dams
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France generalBernhard lehnerMichele thiemeMcgill university global hydrolabWorld wildlife fundMcgill universityGlobal sustainabilityGlobal hydrolabParis agreementமைக்கேல் தீம்உலகம் வனவிலங்கு நிதிமகில் பல்கலைக்கழகம்உலகளாவிய நிலைத்தன்மை

Over 260,000 kilometres of rivers at risk due to proposed hydro dams

Dams and reservoirs are the leading contributors to future loss of connectivity in free-flowing rivers around the world Over 260,000 kilometres of river could potentially be severed by planned hydroelectric developments according to McGill University researchers. The Amazon, the Congo, and the Irrawaddy are just a few of the rivers at risk of losing their free-flowing status if the proposed construction of new hydropower dams takes place. The study, led by World Wildlife Fund and published recently in Global Sustainability, showed that planned dams and reservoirs are leading contributors to the decline of free-flowing rivers around the world. It also provides a comprehensive list of science-based solutions to minimize the impacts of hydropower development in rivers. “We used a dataset of more than 3700 potential hydropower projects and calculated their impacts on rivers worldwide,” says Prof. Bernhard Lehner from McGill University’s Global HydroLab, who created the underpinning g

France generalBernhard lehnerMichele thiemeMcgill university global hydrolabWorld wildlife fundMcgill universityMcgill university is canadaGlobal sustainabilityGlobal hydrolabParis agreementமைக்கேல் தீம்உலகம் வனவிலங்கு நிதிமகில் பல்கலைக்கழகம்மகில் பல்கலைக்கழகம் இருக்கிறது கனடாஉலகளாவிய நிலைத்தன்மை

Flüsse von über 260 000 Kilometern Gesamtlänge gefährdet » latinapress Nachrichten

Ein internationales Forscher innen-Team, unter ihnen Senckenberg-Generaldirektor Klement Tockner, hat die weltweite Beeinträchtigung von Flüssen durch geplante Staudämme dokumentiert. Sie kommen zu dem Schluss, dass Fließgewässer von insgesamt mehr als 260.000 Kilometern Länge durch zukünftige Staudämme nicht mehr frei fließen könnten – mit massiven Auswirkungen auf die einzigartige biologische Vielfalt und die vielfältigen Leistungen dieser Gewässer. […]

France generalMichele thiemeSenckenberg societyThird the researchEnergy or the regulationSenckenberg generaldirektor klementThey haveStudy thatDams areAmazonas or congoWorld wildlifeAdams underRiver is affectedThat needNatur amp umweltமைக்கேல் தீம்

Kids of the world paint thoughts on protecting water in Christchurch Earth Day exhibition

“We all have the power to do something for our country, and for the city we live in . It’s our responsibility to take care of our homelands, and the Earth.” Li said her personal favourite was by 12-year-old Jiali Xie from China, who painted the world’s last drop of water as a woman’s teardrop. Supplied A painting by 12-year-old Jiali Xie from China, depicting the world’s last drop of water as a woman’s tear. “Lack of water resource and climate change are very serious issues, and it’s important to both raise young people’s awareness of them, but also to inspire them to make a difference.”

New zealandJiali xieMichele thiemeLily liMinistry of social developmentOffice of ethnic communitiesEveryone an artistWorld wildlife foundationChristchurch arts centreWorld earth dayChristchurch artsEveryone an artist trustSocial developmentEthnic communitiesWildlife foundationEarth day exhibition

A dam predicament

Around the world, freshwater species are disappearing at an alarming rate: Since 1970 their populations have decreased by 84% on average a staggering drop representing the magnitude of the damage that has been done to freshwater ecosystems. Free-flowing rivers, in particular, have been hard-hit, and dams are one of the biggest threats. The wrong dam in the wrong place can have profound consequences: Dams alter water flows, block fish migration routes, devastate the habitats of endangered species, and trap nutrient-rich sediment needed to replenish downstream deltas. Globally, the number of large dams increased tenfold between 1950 and 2017, and today the tally stands at more than 58,000. A 2019 WWF study found that nearly two-thirds of the world’s long rivers are impeded.

United statesEvan freundMichele thiemeSouth americaSouthern africaLuangwa riverEastern himalayasFlowing riversஒன்றுபட்டது மாநிலங்களில்எவன் ஃப்ரீண்ட்மைக்கேல் தீம்தெற்கு அமெரிக்காகிழக்கு இமயமலைபாயும் ஆறுகள்