"PHOENIX — Reggie Carrillo knows firsthand that where you live can determine how hot your neighborhood gets.
The environmental activist and educator resides in a largely Mexican American area of south-central Phoenix, where segregation once forced Black and Hispanic people to live south of the railroad tracks. More than a half century later, the historic lack of investment means fewer trees and subsequent temperatures 13 degrees F (7 C) higher than wealthier, leafier neighborhoods just a few miles away.
“To understand climate change, to understand the urban heat island effect, you have to understand the history,” said Carrillo, who wants to share that knowledge with his neighbors and help cool the community. "
Anita Snow reports for the Associated Press October 5, 2022.