Philadelphia installed white roofs on about 340 low-income seniors’ homes from 2001–2003; ceiling temperatures fell 4–5°F, and air-conditioning electricity use fell by 560 kWh per year

Discover how Philadelphia's initiative to paint roofs white resulted in significant energy savings and lower temperatures for low-income seniors. Learn why this simple, low-tech solution is overlooked yet crucial in the fight against urban heat and high energy costs.

Raccontata daeconomictimes.indiatimes.comtimesofindia.indiatimes.comclarin.comeltiempo.com