hydro energy, solar energy, non-carbon economy, energy supply, bioenergy, risk management, insolation contrast range, estimative forecast, world regions, wind energy, biogas, risk factors, glacier mass balance, renewable energy sources, capacity factor, Russian energy market, regression model, World Ocean level, gas generator, investment costs, pyrolysis, renewable energy, renewable energy in Russia, nuclear energy, energy transition, non-carbon en-ergy sources, htar production, area of the sea ice, geothermal energy, electricity production, resource risks