Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

American Lung Association report found that about 156 million people live in counties plagued by high levels of ozone and ...

Authorities arrested the 19-year-old from Waretown, New Jersey, and charged him with arson and aggravated arson in the fire ...

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Several Denver metro counties celebrated Earth Day with air quality wins, with Boulder and Adams counties adopting new air ...

People in the Denver metro area are breathing some of the most ozone-polluted air in the U.S., the latest "State of the Air" report from the American Lung Association found.

Denver's ozone pollution ranks among the worst in the U.S., according to a report out Wednesday from the American Lung ...

This morning, we dive into the latest 'State of the Air' report from the Lung Association, revealing how Colorado measures up ...

Arborists are turning vacant land on Detroit's eastside into a small urban forest, not of elms, oaks and red maples indigenous to the city but giant sequoias.

Energy Secretary Chris Wright celebrated the 56th anniversary of Earth Day by contrasting how the environment looked before ...

A United Airlines aircraft caught fire shortly after takeoff when a rabbit was sucked into its engine. Flight 2325 was forced to divert back to Denver for an emergency landing on Sunday (13 April).

High-tech camera reveals the pollutants spewing into the atmosphere, providing evidence for the state to investigate gas and oil operators.