Hundreds of roofs in the informal settlements of India’s western Gujarat state have been painted in a reflective, white coating over the last two months to try to keep their occupants cooler as the hottest time of year approaches.

過去兩個月裡，在印度西部的古吉拉特邦，有數百個違章建築的屋頂外層都塗上了一種可以反光的白色塗層。面對即將到來的酷暑，這種白色塗層可以使住在建築的人感到涼爽一點。