Hydroelectric dams emit a billion tonnes of greenhouse gases a year, study finds

Noted: Emily Stanley, a professor in liminology and marine science at the University of Wisconsin-Madison, said that the study is “very relevant” because it delivers the best available information about greenhouse gas emissions from dams. It shows that high methane emissions are not linked to the location or antiquity of the reservoirs, as other researchers suggest, but to the quantity of organic material.