N. A. Shpolyanskaya
Ukhta State Technical University
Russian Federation

Nella A. Shpolyanskaya – Dr. Sci. (Geography), Honored Researcher of Lomonosov Moscow State University, Prof., Department of Chemistry, Chemical Technology, Ecology and Technosphere Safety, Faculty of Technology

13, Pervomaiskaya ul., Ukhta, 169300

G. G. Osadchaya
Ukhta State Technical University
Russian Federation

Galina G. Osadchaya – Dr. Sci. (Geography), Prof., Department of Chemistry, Chemical Technology, Ecology and Technosphere Safety, Faculty of Technology

13, Pervomaiskaya ul., Ukhta, 169300

A. N. Fedorov
Melnikov Permafrost Institute of Russian Academy of Sciences (Siberian Branch)
Russian Federation

Alexander N. Fedorov – Dr. Sci. (Geography), Deputy Director for Research

36, Permafrost ul., Yakutsk, 677010