The three most difficult trails on South Mountain will close when the National Weather Service declares heat warnings from 8 a.m. to 5 p.m.

Cities with first-time fire zone designations include Santa Monica, La Cañada-Flintridge, South Pasadena, Alhambra, ...

University of Miami researchers looked in detail at 57 households where summer temperatures regularly rise above 82 degrees ...

A new University of Miami study looked in detail at 57 households where summer temperatures regularly rise above 82 degrees ...

Earlier this month, the program released a list of the worst cities for people with seasonal allergies to live in. Wichita, ...

The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

A federal judge has found the extreme heat in Texas prisons that don’t have air conditioning is “plainly unconstitutional.”.

All told, the size of orange and red patches on the new maps is 3,626 square miles — an area nearly twice the size of ...

Cal Fire's new maps for Southern California added 3.5 million acres into fire-hazard zones, increasing the acreage in the ...

After returning from injury, Steve Kerr reveals how Jonathan Kuminga fits in with this retooled edition of the Warriors.

Researchers from Carnegie Mellon University have developed a cutting-edge method to identify muscle activity in densely ...