Things are getting a bit spicy at Mount Spurr in Alaska, where geologists have been reporting an increase in seismic activity ...

Air quality monitors from the Environmental Protection Agency are often used to guide policy and public health initiatives ...

The EPA's 'biggest deregulatory action in U.S. history' will likely have longstanding consequences for Missouri's air quality ...

Mount Spurr near Anchorage has been showing signs of unrest for a year. Now scientists think it's creeping closer to an ...

The $16 million project is scheduled to start later this year, pending approval from the Colorado Department of Public Health ...

Researchers found Earth's orbital changes align with past volcanic eruptions. Climate shifts and massive eruptions occurred ...