A new law was hailed as a win for Wasatch Front air quality. But it's not yet clear whether it will lead to any additional, ...

A $309M federal contract revives border wall construction in Arizona, sparking backlash from environmental groups and renewed ...

About 30 harmful blooms plagued Arizona waters last year, affecting parts of Lake Havasu, Saguaro and Canyon lakes and Tempe ...

West Virginia Republican Shelley Moore Capito, chair of the Senate Environment and Public Works Committee, and Oregon ...

With Renewable Volume Obligation proposals, EPA exceeds expectations for many biofuels advocates, Sara Wyant writes.