A new law tightens building and emissions regulations for large distribution warehouses to mitigate air pollution and traffic in surrounding communities.

Depleted groundwater threatens communities, agriculture, and ecosystems in California's Central Valley, which produces much ...

At 7:50 a.m. on Thursday, the NWS Phoenix AZ reported an air quality alert in effect until Saturday at midnight. The alert is for Imperial County Southwest, Imperial County West and Imperial Valley.

The Tijuana River has been plagued with raw sewage and industrial waste from Tijuana for decades, fouling beaches along the U ...

In one of the world's largest star-gazing sanctuaries, Māori guides connect travelers with the cultural and spiritual ...

The Montana Department of Environmental Quality has rejected a petition filed by two river advocacy groups seeking an impairment designation for the Big Hole River tied to nutrients pollution.

Astronomy-lovers should head to this incredible stargazing destination in the American West full of Dark Sky locations, ...

Cal Fire released new fire hazard severity maps for Southern California on Monday, March 24, the final piece in a 2025 statewide rollout. While Cal Fire mapped “very high” wildfire zones under ...

Cities in California, Texas and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

California's Public Advocate has been pressing for new utility fire maps since 2023. Utilities are on board — but regulators ...

These are the four best spots for stargazing near San Diego! Plan your next dark-sky trip in or night photography in SoCal.