TY CONF TI BLOCKCHAIN TECHNOLOGIES AND THEIR ECOLOGICAL FOOTPRINT: PROBLEMS AND SOLUTIONS KW blockchain technologies KW cryptocurrency KW bitcoin KW carbon footprint KW efficient energy consumption KW environmental damage JO TECHNOLOGIES IN BIOECONOMICS: INNOVATIONS AND CHALLENGES IN THE 21ST CENTURY AU Bezrukova, T.L. AU Saakov, V.A. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov