 It's Morning Edition from NPR News. I'm Steve Inskeep. And I'm Layla Fauden. The triple digits are back in Phoenix, and there have already been fatalities as a result. Yeah, the city suffered more than 600 deaths last year as a result of extreme heat, and more are coming this year. But the city and the surrounding county have been taking steps to try to prevent that. Catherine Davis-Young at member station KJZZ is tracking this closely and joins me now. Good morning.