FILE PHOTO: a chimney at Laziska power station, a thermal power plant, is seen behind the Boleslaw Smialy coal mine in Laziska Gorne, Poland, December 5, 2018. REUTERS/Kacper Pempel/File Photo
FILE PHOTO: a chimney at Laziska power station, a thermal power plant, is seen behind the Boleslaw Smialy coal mine in Laziska Gorne, Poland, December 5, 2018. REUTERS/Kacper Pempel/File Photo