Arizona Science Desk

Rising temperatures have much of Arizona and the Southwest under an extreme heat advisory until Monday.

As part of a statewide heat-safety campaign, the Arizona Division of Occupational Safety and Health is using the ubiquity of cellphones to spread the word about heat safety to outdoor workers, as well as the general public.

The Quartermaster Depot State Historic Park in Yuma is home to a new library dedicated to protecting the history of the Colorado River.

It took decades, and a series of dams, lakes, irrigation systems and political maneuvering to harness the water of the mighty Colorado River and direct it all over the Western states.   

Now, you can see the river’s history by stepping inside the new Colorado River Research Library, only a few steps away from the banks of the river itself.