A newly developed environmental monitoring system found methane at high levels along a Pennsylvanian stream close to a recently reported shale gas leak.

Researchers have found that when fish are exposed to endocrine-disrupting chemicals such as BPA, the adverse impacts remain in effect for up to 3 generations.

Studies show chlorine treatment at sewage plants may promote development of new strains of antibiotics, in turn potentially promoting antibiotic resistance.

Scientists have identified the first known human population that is uniquely adapted to the high levels of arsenic found in their drinking water.

Portland has taken the bold initiative to harness hydroelectric power from water flowing through pipes leading to and from private residences in the city.