Four major truck manufacturers have been linked to 307,000 deaths and more than $1.4trillion (£1.08trillion) in global health ...

Authorities say the industry contributes $50 million a year to the city’s tourism economy, but the number of tourist ...

During a hike in the Great Smoky Mountains National Park in 1995, Don Barger climbed Chilhowee Mountain hoping to gaze across the valley below. All he saw was a wall of gray haze.

The decision bought officials time to avert economic harm, but raised concern from health advocates about the continued impacts of ozone on Arizonans.

The Biden administration placed landmark limits on toxic pollutants from petrochemicals and other industries. Now, the Trump ...

The green light came courtesy of President Donald Trump and was part of a flurry of measures announced to prop up the coal ...

Companies had until last week to explain why technology to comply with the Biden-era rules isn't available and how complying ...

EDF and other groups released a new analysis documenting the industrial facilities that the Trump EPA has invited to ask for ...

The Biden-era limits were designed to reduce emissions of toxic pollutants, including a cancer-causing ingredient used in ...

Two leading chemical industry groups have asked the Trump administration for blanket exemptions to certain Biden-era ...

Oregon is at a critical crossroads when it comes to clean transportation. Recently, diesel truck manufacturers and fossil fuel companies have led efforts to slow Oregon's progress toward reducing ...