Good morning. Im jane pauley and this is sunday morning. As anyone who has ventured outside knows all too well, weather is the story of this summer, if not our time. Reports of extreme heat and record high temperatures now almost routine. 2023 is on track to be the hottest year ever recorded. But it may be that one town scorches them all. Phoenix. One of our Fastest Growing cities can also lay claim to being one of our hottest. David pogue checks out its triple digit woes. More than 100 million americans under heat alerts. Reporter 2023 has broken all kinds of records, but not the good kind. Scientists say july is the earths hottest month in recorded history. Welcome to your future. This is what you are facing in what is being projected to be an increasingly hot United States. We are all going to get hotter. Reporter ahead on sunday morning, a cold, hard look at this summers freakish heat. Actor michael j. Fox has now lived more than half his life with parkinsons disease. This morning
about his efforts to get sober before buying the gun at the center of the case. the outrage in israel. the u.n. adding it and hamas to a blacklist of those who harm children in war zones. new body cam video from the arrest of the world s number one golfer, scottie scheffler. what it reveals. and team usa stunning the world with a historic win. is america catching cricket fever? announcer: this is nbc nightly news with lester holt. good evening, and welcome. in this season of extremes and heightened weather danger we ve witnessed these last several weeks, it s now the crippling heat we re watching tonight taking hold across a wide stretch of the southern tier putting 21 million people under heat alerts today. in the past 24 hours, triple-digit temperatures being recorded in places that include phoenix and las vegas. near record high temperatures could occur as far east as miami. tonight, first responders are adopting some of the lessons from last year s deadly summ