Methodology for assessing the environmental characteristics of various methods of generating electricityEkaterina Gryznova, Vadim Davydov, Yuri Batov, Valentin Dudkin, Danila Puz’ko, Nikita Myazin and Vasiliy RudE3S Web Conf., 140 (2019) 09001DOI: https://doi.org/10.1051/e3sconf/201914009001