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14 mars 2018

Small hydropower a big global issue overlooked by science and policy [Mongabay]

In January, Brazil made a surprise announcement, ending its mega-dam building policy after years of pushing ahead with controversial projects such as the Belo Monte dam (the world’s third largest), and the Tapajós Complex. But although that comes as welcome news to environmentalists, it is overshadowed by some bad news : a five-fold increase in so-called small hydropower dams in Brazil over the last 20 years, as identified by a new study.

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14 mars 2018

Face au « choc climatique », la biodiversité menacée d’extinctions massives [Le Monde - Biodiversité]

Si le réchauffement se poursuit jusqu’à + 4,5 °C, la moitié des espèces des régions les plus riches en faune et en flore risqueront de disparaître d’ici à 2 080.

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13 mars 2018

Study shows market-based strategies for ecosystem conservation are surging [Phys]

Programs in which people pay landholders to support natural systems that provide benefits like flood protection, biodiversity and carbon storage, are expanding around the world, according to a new UCLA-led study.
The paper, published today in Nature Sustainability, is the first peer-reviewed, global assessment of "payments for ecosystem services" mechanisms. Leading the study were James Salzman, Donald Bren Distinguished Professor of Environmental Law at UCLA School of Law and the Bren School of the Environment at UC Santa Barbara, and researchers at Ecosystem Marketplace, an initiative of the non-profit Forest Trends.

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13 mars 2018

Krill found to break down microplastics – but it won’t save the oceans [The Guardian]

Digestion of plastic into much smaller fragments ‘doesn’t necessarily help pollution’, Australian researchers say.

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12 mars 2018

What is biodiversity and why does it matter to us ? [The Guardian]

The air you breathe, the water you drink and the food you eat all rely on biodiversity, but right now it is in crisis – because of us. What does this mean for our future and can we stop it ?

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