Climate
Half of California Waterways Contaminated With PFAS Pesticides
A review of regulatory tests found 'forever chemicals' in approximately 50% of the state's tested streams and rivers, including drinking water sources.
Topic
water-quality
Science
Global River Oxygen Levels Dropping as Climate Change Intensifies
A global analysis of more than 21,000 river systems found that nearly 80% have steadily lost dissolved oxygen over the past four decades.
Climate
Sewage and Fuel Leaks Contaminate Potomac River Drinking Water Source
Environmental investigators and lawmakers are questioning regulators after raw sewage and fuel leaks contaminated a river serving five million people.