Fish expend energy metabolizing drugs and personal products in fresh water.
People who eat fish from glacial meltwater may be at risk from persistent organic pollutants produced in the 20th century.
Sediment core from a Copenhagen lake tells the story of the Industrial Revolution.
Hundreds of U.S. streams may have significant levels of endocrine-disrupting chemicals from treated wastewater.
Wetlands can form in overlooked spaces, and that might be a good thing.