Arizona's environmental agency must rewrite five sections of an air quality permit for the Hermosa Mine near Patagonia after ...

The Environmental Protection Agency has rejected an air pollution permit for the Hermosa mine in Arizona's Patagonia ...

The Environmental Protection Agency has rejected Arizona’s approval of an air pollution permit for a new mine in the Patagonia Mountains south of Tucson.

The study did not measure how much water evaporation floating solar would prevent, but previous NREL research has shown that photovoltaic panels—sometimes called “floatovoltaics” when they are ...

The Arizona Lottery offers multiple draw games for those aiming to win big. Arizona offers Powerball, Mega ...

"An expensive, unnecessary, and environmentally disastrous project." Administration faces backlash over 'catastrophic' plan ...

On its surface, floating solar appears to conserve water while generating carbon-free electricity. River managers are ...

Alvin's moisture will enhance rainfall in the Southwest U.S. this weekend then increase the chances of severe weather in the ...

For years, cities have used advanced purified water as an indirect potable source, recharging it into aquifers or other water ...

Tucson is a long way from my hometown of Jackson, Wyoming, but I probably don’t have to tell you how quickly this place can feel like home.

HJ3, founded in 2002 as a technology transfer from the University of Arizona, has revolutionized structural repair and protection with its patented carbon fiber composite solutions. What began as a ...

President Donald Trump has signed an order stripping protections from the Pacific Islands Marine Heritage National Monument ...