pollution

A new report from the American Lung Association finds about half of U.S. children are living in areas with unhealthy air quality, and several Mountain West cities rank among the most polluted in the country.

A coalition of environmental groups is suing the Environmental Protection Agency, alleging the agency missed a key deadline tied to a stricter national standard for soot pollution. The case could affect air quality protections across the Mountain West.

Hot days and polluted air may be doing more than making people uncomfortable — they could also affect mental health. A new study from the University of Utah finds that short bursts of extreme heat, combined with certain types of air pollution, are linked to an increased risk of suicide.

A new national report finds access to nearby nature in the United States is deeply unequal. And that the gap is closely tied to race, income and pollution exposure. Researchers say the pattern shows up across the country, including in the Mountain West.

A new report shows tens of thousands of abandoned mines dot the U.S., including parts of the Mountain West. Experts say these sites pose pollution threats due to being in areas that are at high risk for flooding.

A new study led by the University of Michigan shows that large livestock farms are polluting the air across the U.S., including parts of the Mountain West. Researchers say these impacts are felt hardest by nearby communities, where people of color often live.

A new report shows the rate of spills from oil-and-gas drilling is dropping in some of the Mountain West’s top fossil fuel-producing states. But conservation groups warn these spills are still significant and can harm area waters, lands and wildlife.

A new report shows the rate of spills from oil and gas drilling is dropping in the Mountain West region’s top fossil fuel-producing states.

A new report from the American Lung Association shows cities across the Western U.S. have some of the most polluted air in the country. But that’s not the case everywhere in the Mountain West.

A new report shows air pollution is affecting most national parks across the U.S., including parts of the Mountain West.