So he wants Arizona to sue any person from any other state or country whose emissions damage the air quality here.

GRAND CANYON NATIONAL PARK, Ariz.— Tribes, conservation organizations and community groups today defended Baaj Nwaavjo I’tah ...

During a news conference on Wednesday, the coalition of 35 organizations laid out its vision for Arizona’s 2025 legislative session. The group, coordinated by the Sierra Club, also released a ...

On Nov. 25, 2024, a Tucson, Ariz.-based group with a long history of anti-hunting initiatives and litigation—delivered a ...

Sierra Club announced a shake-up in its leadership ranks as two of the environmental group’s senior employees are exiting the nonprofit. Phil Radford, Sierra Club’s chief strategy officer ...

Save the Scenic Santa Ritas, the Center for Biological Diversity, the Arizona Mining Reform Coalition and the Sierra Club’s Grand Canyon Chapter filed a lawsuit in November 2017 challenging the Forest ...