During a hike in the Great Smoky Mountains National Park in 1995, Don Barger climbed Chilhowee Mountain hoping to gaze across ...

An analysis of data from 1999 through 2023 shows 93% of parks and wilderness areas saw improved air quality on clear days.

During a hike in the Great Smoky Mountains National Park in 1995, Don Barger climbed ... Haze forms when small particles of air pollution, such as sulfur dioxide or nitrogen oxides, scatter ...

Conservation and public-health groups sued Environmental Protection Agency Administrator Lee Zeldin today for his failure to take action to reduce smog pollution in the Phoenix metro area and Mariposa ...

Before President Nixon created the EPA in 1970, water and air pollution weren't federally ... By 1974, they had taken 81,000 photos. The National Archives digitized nearly 16,000 and made them ...

Governor Whitmer declares April 21-27 as Dark Sky Week in Michigan, highlighting stargazing and the fight against light pollution.

Six months after a $7.6 million national park expansion was completed, the new recreation area has not yet opened to the public.

Contrary to Trump and Zeldin’s statements, former EPA leaders noted the national economy ... of the 1970 Clean Air Act, which dramatically reduced smog and other toxic pollution throughout ...