Our Recent Updates...

TUCSON, Ariz.— Together, four conservation groups filed a lawsuit in federal district court today to overturn a key permit for the controversial proposed Rosemont Copper Mine in southern Arizona. The lawsuit challenges the U.S. Army Corps of...

GRAND CANYON NATIONAL PARK, Ariz. ― Rep. Raúl Grijalva (D-Ariz.) will make a major conservation announcement Saturday about efforts to protect Grand Canyon National Park and nearby public lands from the dangers of uranium mining.

TUCSON, Ariz.— Conservation groups filed a lawsuit today challenging the U.S. Army Corps of Engineers’ approval of a permit that allows a huge master-planned development project near Benson, Ariz., to proceed. The Villages at Vigneto would transform...

ALBUQUERQUE, NM-- Last week, the Gila National Forest served rancher Craig Thiessen notice of a decision to cancel the grazing permit for the Canyon del Buey allotment near Reserve, New Mexico. Thiessen had pleaded guilty to intentionally trapping...

PHOENIX – On Sunday, November 18, on a beautiful day in South Mountain Park, Sierra Club’s Grand Canyon Chapter recognized the work of some of its outstanding volunteers and partners in conservation. From organizing and leading service projects, to...

PHOENIX – Today is the deadline for Americans to comment on the proposal by Acting Environmental Protection Agency (EPA) Administrator Andrew Wheeler and Deputy National Highway Traffic Safety Administration (NHTSA) Administrator Heidi King to roll...

GRAND CANYON NATIONAL PARK, Ariz. — The U.S. Supreme Court today declined to hear the mining industry’s challenge to the 20-year ban on new uranium mining near the Grand Canyon.

PHOENIX, AZ—Today, environmental, educational, and faith groups called on Senator Flake to oppose the nomination of Brett Kavanaugh to the United States Supreme Court due to his hostility to environmental protection and access to justice to protect...

“The Trump administration is rolling back yet another standard that helps to protect the health of all Arizonans, especially those of us in the Phoenix area who have been hit with day after day of high pollution advisories this summer,” said Sandy...

State Wants Authority Over Key Provision of Federal Law PHOENIX — Conservation groups are challenging Arizona’s attempt to assume authority over a key provision of the federal Clean Water Act. In a letter sent Friday to state policymakers, the...