Mayor Regina Romero wants Tucson to consider a host of ordinances setting zoning and environmental requirements for data ...

Some Tucsonans and environmental advocates oppose Project Blue because of concerns about its future impact on natural ...

The utility called for the retirement of the units in its 2023 resource plan due to the rising costs of coal, anticipated ...

Tucson Electric Power will likely need to build a new natural gas plant to serve the second big data center complex planned ...

The Pima County Sheriff’s Department wants the public to be on the lookout for a missing hiker. The PCSD said William Grant Charlton told his family he was going day hiking along the Pima Canyon Trail ...

A new report from the Ocean Conservancy ranks Arizona among the worst states in the country for plastic pollution policy.

Seismic waves from an earthquake in eastern Russia hit Death Valley, shaking up a critically endangered desert fish ...

The Arizona Department of Environmental Quality hosted a meeting about Aluminum Dynamics' recycling plant project coming to Benson.