![From Miami to Melbourne, a quiet revolution is underway to fend off a silent and invisible killer](https://newsology.co.in/wp-content/uploads/https://image.cnbcfm.com/api/v1/image/107374663-1708077097981-gettyimages-1976101261-AFP_34HL6YK.jpeg?v=1708077186&w=1920&h=1080)
From Miami to Melbourne, a quiet revolution is underway to fend off a silent and invisible killer
[ad_1] Firefighters work on the zone of a forest fire in the hills in Quilpue comune, Valparaiso region, Chile on February 3, 2024. Javier Torres | Afp | Getty Images A quiet revolution is underway to address a widely underestimated climate challenge: extreme heat. Local authorities have appointed several chief heat officers (CHOs) in cities…