Two environmental engineers say governments need to do more to protect people from possible water contamination after wildfires.

Debating whether climate change or forest management has caused the devastating wildfires in California, Washington and Oregon is a false choice.

How climate change and other human actions have combined to create conditions for explosive wildfires in California, Oregon and Washington state.

Buildings aren't the only things at risk in wildfires. Recent disasters in California have left local water system contaminated with toxic chemicals afterward, slowing return and recovery.

California’s COVID-19 disparities are sobering. Everyone is at risk, but low-income, Black and Latino residents are dying at higher rates.

President Trump is scheduled to appear at an Independence Day celebration at Mount Rushmore on July 3. For some, this event will symbolize love of country. Others will see it very differently.

Fast-food restaurants can be comforting places, but when they saturate communities, they crowd out healthy food sources and leave residents less nourished.

A new study finds an association between living near active oil and gas wells in California and low birth-weight infants, adding to findings elsewhere on health risks from oil and gas production.

Thousands of dams across the US are aging and overdue for maintenance. Taking them down can revive rivers, restore fish runs and create new opportunities for tourism and outdoor activities.

Small-scale gold mining operations in developing countries are major sources of toxic mercury pollution, using techniques that haven't changed much since the California Gold Rush 150 years ago.