Rachel Belgrade waits with her puppy Bo outside a Circle The City mobile clinic for a blood pressure medicine prescription, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
A homeless man drinks a bottle of water outside a Circle The City mobile clinic, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Phillip Enriquez, left, and Alfred Handley receive intravenous saline solution from a Circle The City mobile clinic, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Patients gather outside one of the five Circle The City mobile clinics stationed outside a soup kitchen for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Alfred Handley watches an intravenous saline solution drip administered by the Circle The City medical team, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Rachel Belgrade drinks water as she waits with her puppy Bo outside a Circle The City mobile clinic for a blood pressure medicine prescription, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
A homeless man waits to see a doctor at one of the five Circle The City mobile clinics stationed outside soup kitchens and other services for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Homeless people gather outside one of five Circle The City mobile clinics stationed outside a soup kitchen, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
A homeless woman is given a pair of shoes from a nurse working aboard one of five Circle The City mobile clinics stationed outside soup kitchens and other services for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
A Circle The City mobile clinic, helps homeless patients, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
A homeless man walks towwards one of five mobile clinics stationed outside soup kitchens and other services for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Dr. Matt Essary checks on a patient as he works at one of the five Circle The City mobile clinics stationed outside soup kitchens and other services for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Dr. Matt Essary checks on a homeless man who fell ill on the sidewalk outside one of five Circle The City mobile clinics stationed outside soup kitchens and other services for homeless people, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)
Nurse practitioner Perla Puebla prepares a intravenous saline solution outside a Circle The City mobile clinic, Thursday, May 30, 2024 in Phoenix. Based in the hottest big metro in America, Circle the City is taking measures to protect patients from life-threatening heat illness as temperatures hit new highs. Homeless people accounted for nearly half of the record 645 heat-related deaths last year in Arizona's Maricopa County, which encompasses metro Phoenix.(AP Photo/Matt York)