Players are at risk of heat exhaustion, characterized by symptoms including faintness, dizziness, fatigue, weak or rapid pulse, and low blood pressure; and heat stroke, with symptoms including high ...

An endangered bat species has been detected in southeastern Arizona. Researchers say the discovery of the Mexican long-nosed ...

Several areas of the country, including major cities, are under threat from devastating climate disaster, experts warn.

Lawmakers at the Arizona Capitol want to require the state’s utility companies to prepare plans to reduce wildfire risks ...

Arizona officials and environmental groups are bracing for the impact of President Donald Trump's sweeping changes to energy ...

A new map of climate conditions during the Pliocene epoch—the last time Earth’s carbon dioxide concentrations hit 400 parts ...

WASHINGTON— Six of the nation’s largest utility corporations netted more than $10 billion in profits while disconnecting ...

It’s not just Florida and California — from poisoned water supplies to infrastructure issues to polar vortices, Holly Baxter ...

The orders could affect Arizona through their impact on climate change and potential harm to the electric vehicle industry. There are no significant proven oil or gas reserves in Arizona, and analysts ...

Central Arizona is preparing for more intense droughts and floods through major water projects with federal support.

The pause affects billions of dollars and is delaying home repairs, factory construction and other projects, many in states ...

Climate change-fueled natural disasters like the L.A. fires could destabilize the entire U.S. economy, economist Gary W. Yohe wrote. The focus at the 2024 World Economic Forum will be U.N. chief ...