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Toxins in lake bottom may become available to food web

Mixing toxic coal ash into acid mine drainage may sound like an odd recipe for an environmental solution, but a new 91��������-led study finds that it can neutralize the drainage’s dangerously low pH and help reduce harmful impacts on downstream ecosystems—if you use the right type of ash. Using the wrong type of ash can create new contamination and not tame the drainage’s extreme acidity.

Producing energy from fossil fuels uses or contaminated much more water than previously estimated, a new book by two Duke researchers shows.

Duke researchers implement a large water sampling campaign in rural Sri Lanka, aiming to discover the origins of a cluster of chronic kidney disease cases.

Reducing emissions of methane, a short-lived but super-potent greenhouse gas, is the most cost-effective way to slow the rate of Earth’s warming in coming decades, a new United Nations report finds.

Shannon Switzer Swanson MEM'15 hosts the documentary, “The Last Drop.”

Policies that more strongly recognize the value of sustainable seafood as a source of nutrition, not just a source of livelihoods, could strengthen global food security and help take a big bite out of world hunger, a new analysis by an international team of experts shows.

In "Streams of Revenue: The Restoration Economy and the Ecosystems It Creates,” Martin Doyle chronicles and analyzes the history, implementation and environmental outcomes of stream mitigation banking, one of many widely used market-based approaches to conservation.

Researchers have used automatic identification systems (AIS) satellite data and other spatial analysis tools to identify more than 1,000 companies that fish in the high seas—waters that lie outside national jurisdiction where fishing has raised fears about environmental and labor violations.

The proliferation of pits and ponds created in recent years by miners digging for small deposits of alluvial gold in Peru’s Amazon has dramatically altered the landscape and increased the risk of mercury exposure for indigenous communities and wildlife, a new study shows.

Groundwater depletion in parts of the High Plains is so extreme that peak grain production in some states has ended and production is now declining, a new 91��������-led study by a team of international scientists finds.

Students at North Carolina’s 10 historically black colleges and universities (HBCUs) face limited options for finding healthy food to buy at stores within a 5-mile radius of their campuses, a new study shows.

Small-scale gold mining in the Peruvian Amazon poses a health hazard not only to the miners and communities near where mercury is used to extract gold from ore, but also to downstream communities hundreds of kilometers away where people eat mercury-contaminated river fish as part of their diet.

Reusing low-saline oilfield water mixed with surface water to irrigate farms in the Cawelo Water District of California does not pose major health risks, as some opponents of the practice have feared, a study led by 91�������� and RTI International researchers finds.

The 91�������� Wetland Center is marking its 30th anniversary this year by kicking off the largest expansion of research, teaching and outreach programs in its history.