Ocean acidification (OA) is spreading rapidly in the western Arctic Ocean in both area and depth, according to new interdisciplinary research reported in Nature Climate Change by a team of international collaborators, including University of Delaware professor Wei-Jun Cai.

Meet Mr. Trash Wheel and Professor Trash Wheel—a pair of floating, solar and hydro-powered trash interceptors keeping Baltimore’s waters clean. These frankly adorable trash wheels can collect as much as 38,000 pounds of debris in a single day.

Understanding the environmental impact of using oil and gas wastewater as a road treatment may lead to safer water resources and stricter government regulations, according to Penn State researchers.

William Burgos, professor of environmental engineering, and Lara Fowler, senior lecturer at Penn State Law and assistant director of the Institutes of Energy and the Environment, will study this impact through research funded by the United States Geological Society.

“In the northwest corner of Pennsylvania, gravel road aggregate has a lot of clay and when you drive over it, it tends to kick up a lot of dust, so they need to use dust suppressants,” Burgos said. “It just so happens that the northwestern portion of the state also has had a lot of oil and gas activity.”

A Brazilian judge temporarily suspended plans to open what would be the largest gold mine in the Brazilian Amazon this week, saying the Canadian company behind the project illegally obtained land and did not adequately address concerns from indigenous communities, according to news reports.

A new study on how ocean currents transport floating marine debris is helping to explain how garbage patches form in the world’s oceans. 

Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and colleagues developed a mathematical model that simulates the motion of small spherical objects floating at the ocean surface. 

A Washington State University study of the chemistry of technetium-99 has improved understanding of the challenging nuclear waste and could lead to better cleanup methods.

The work is reported in the journal Inorganic Chemistry. It was led by John McCloy, associate professor in the School of Mechanical and Materials Engineering, and chemistry graduate student Jamie Weaver. Researchers from Pacific Northwest National Laboratory (PNNL), the Office of River Protection and Lawrence Berkeley National Laboratory collaborated.

Wastewater from oil and gas operations – including fracking for shale gas – at a West Virginia site altered microbes downstream, according to a Rutgers-led study.

The study, published recently in Science of the Total Environment, showed that wastewater releases, including briny water that contained petroleum and other pollutants, altered the diversity, numbers and functions of microbes. The shifts in the microbial community indicated changes in their respiration and nutrient cycling, along with signs of stress.

A better understanding of sediment and freshwater flow into Galveston Bay is now available from a new U.S. Geological Survey report, done in cooperation with the Texas Water Development Board, and the Galveston Bay Estuary Program.

University of Toronto engineering professor Elizabeth Edwards is internationally recognized for using biotechnology to clean up industrial solvents in soil and groundwater. Her technique earned her the prestigious Killam Prize in 2016 and has already been used to restore more than 500 sites around the world.

As humans build roads, construct buildings and develop land for agriculture, freshwater ecosystems respond - but not always in the ways one might expect.