New York TimesExtreme Heat Scorches Southern ArizonaNew York TimesA spike in temperature across the Southwest has left many in Arizona gasping for breath. An excessive heat warning from the state's Department of Health Services remained in effect for over a dozen counties on Sunday, with temperatures up to 120 ...23 million still under excessive heat advisory as temperatures swelter in WestAOLArizona's heat is getting worse — and it's killing peopleAZCentral.comExtreme Heat Waves Will Change How We Live.