Fareed is joined by Jane Gilbert, chief heat officer for Miami-Dade County, Fla., who discusses how she is working to combat the effects of record high temperatures in a county that is considered ground zero for the climate crisis in the United States.（來源：https://www.cnn.com/videos/politics/2024/07/21/gps-0721-the-worlds-first-chief-heat-officer.cnn）