Climate Change

The EPA repealed its greenhouse gas emission limits from power plants in September, but Arizona and about 20 other states say that was illegal.

The new center will focus research on ways extreme heat impacts public health, energy, infrastructure and the economy.

Arizona State University's recent performance, which borders physical theatre and dance, will debut in Paris at UNESCO’s MOST Climate Summit.

While the future of Colorado River as a river source is dim, both state officials and private companies, including Amazon, are stepping up to the plate to help save its remaining reservoirs.

Climate change is prolonging the heat season in Phoenix and around the globe, according to new research from the NASA Goddard Institute for Space Studies.

Maricopa County has confirmed 230 heat-related deaths so far in 2026 — a 60% increase compared to the same point last year. Another 567 deaths are still under investigation.

When natural disasters hit a community, there’s naturally talk of rebuilding. That work, though, takes workers to do the rebuilding. Saket Soni is director of a group called Resilience Force, which represents people who do this kind of work in what’s called the resilience economy.

The proposed Marigold Energy Center near Stanfield is set to have a mix of solar, battery and natural gas generation. The Arizona Power Plant and Transmission Line Siting Committee held public comment on the proposed plant Monday.

Much of the West sweltered through record-breaking heat this summer, as a strengthening El Niño, unusually warm oceans and ongoing human-caused climate change combined to push temperatures to historic levels.

This summer was the hottest on record across the contiguous U.S. and a new report says that's attributable to carbon pollution. The impacts of climate change were especially evident in Arizona.