Sustainability

Groups to feds: Tighten mining rules in light of river spill

Citing the release of millions of gallons of toxic wastewater into a southwestern Colorado river earlier this month, a coalition of conservation groups, two Arizona Native American tribes and two county governments petitioned federal agencies Tuesday to tighten mining regulation on public lands.

Arizona environmentalists cheer EPA Clean Power Plan, utilities wary

WASHINGTON - Arizona environmental groups cheered the final version of the Clean Power Plan unveiled Monday by the Environmental Protection Agency, a first-ever national standard that aims to cut power plant carbon emissions by a third by 2030.

Apache bring Oak Flat copper mine protest to White House, Capitol

WASHINGTON - After weeks of taking their message to churches and tribes around the country, a caravan of San Carlos Apache members sang and prayed in Washington Tuesday for the preservation of sacred sites in southeast Arizona.