Fires can make drinking water, and the water pipes and tanks themselves, unsafe. A researcher who has worked with communities after several wildfires explains why, and what to do.

Wastewater plants are failing to remove a group of potentially toxic chemicals before pumping treated water into rivers and lakes — and climate change may be making the situation even worse, a new report finds.

More than 143 million Americans are at risk of toxic PFAS, so-called forever chemicals, in their drinking water, according to new test results released by the Environmental Protection Agency and with just 40% of water systems fully tested,