Southern Arizona Congressman Raúl Grijalva hosted a community event in Tucson on Wednesday to give details about a bill he’s part of that would make access to clean air and water a right protected by law.

Mexico’s Senate has passed a bill that will nationalize lithium mining in the country. Sonoran leaders are touting that as a win for the state.

Prescott National Forest officials said in a statement that this weekend’s weather could bring “extreme fire danger” to the site of the Crooks Fire, which was 96% contained as of Sunday.

Even as temperatures in the Valley are climbing into the 90s, this remains one of the most beautiful times of year here. In large part, that’s because of the varieties of wildflowers that have emerged with gorgeous, bright colors that create such a unique landscape.

Two or three decades ago, the concept of environmental justice was mostly talked about in academic circles. A recent ruling on a gas plant expansion shows the idea has entered the mainstream.

The U.S. Fish and Wildlife Service will publish revisions Thursday to its five-year-old Mexican Wolf Recovery Plan that it says will improve protections for the endangered species.

Conservationists and residents of the community of Randolph gathered outside the Arizona Corporation Commission building Tuesday to protest Salt River Project’s expansion of a gas-fired generating station. The commission voted 4-1 to deny the project.

From solar panels to water fixtures, building plans have adapted over the years to promote sustainable practices. That certification process has expanded to also include outdoor environments like Orange Mall at ASU's Tempe campus.

The San Pedro River is one of the last free-flowing rivers in the Southwest. Last week, a federal judge rejected a plan by the U.S. Army and U.S. Fish and Wildlife Service to protect the San Pedro.