Sen. Bob Worsley, a Republican from Mesa, is the Arizona Capitol Times’ Leaders of the Year winner in government. Other winners include Gregory Harris of Lewis Roca Rothgerber Christie for law, Richard Stavneak, director of the Joint Legislative Budget Committee, for unsung hero, and NAU President Rita Cheng.

Kartchner Caverns State Park is alive. A wonder of nature whose story began 330 million years ago, the speleothems formations inside Kartchner Caverns are still growing. In addition, it is home to bats and microbes that may have anti-microbial and ...

Across much of Arizona there was more ozone in the air this summer than there was last year, including several days in Phoenix where the levels spiked into the unhealthy range.

The Arizona Department of Environmental Quality disagrees with its own advisory committee, which says current septic system regulations need a serious update to ensure protection of groundwater.

A federal court has rejected a bid to declare the Sonoran Desert bald eagle an endangered species, saying the U.S. Fish and Wildlife Service acted properly when it determined the birds were no different than other bald eagles.

Phoenix Mayor Greg Stanton signed onto a statement in response to President Donald Trump’s decision to withdraw from the Paris Climate Accord, emphasizing his commitment to meeting the goals set in the international agreement through sustainability initiatives in Phoenix.

Making the switch to renewable energy is clearly not a partisan issue. According to the Post-Election National Clean Energy Survey conducted by the Republican polling firm Public Opinion Strategies, 75 percent of Trump voters support taking action to accelerate the development and use of clean energy in the United States. Altogether, 64 percent of the 1,000 voters surveyed say they’d even pay more to support renewables.

Oak Flat, a desert landscape and 90-minute drive from Phoenix, lies in the midst of an environmental and economic controversy.

In all the debates about Mexican Gray Wolves, there’s one opinion that rarely gets considered. God’s opinion – the most honorable opinion of all.

Six hunting and fishing groups are pushing for a compromise in the event the Obama administration designates a national monument around Grand Canyon National Park, a heated issue in the Southwest.