FILE PHOTO: Smokes billows from the chimneys of a steel plant in Wu’an, Hebei province, China, February 23, 2017. Picture taken February 23, 2017. REUTERS/Thomas Peter
FILE PHOTO: Smokes billows from the chimneys of a steel plant in Wu’an, Hebei province, China, February 23, 2017. Picture taken February 23, 2017. REUTERS/Thomas Peter