Never before in the history of mankind has the role of energy from renewable sources been so crucial. 30 % of global electrical energy is "clean" and produced by sun, wind, tide and other renewable sources, yet it remains at an experimental stage.
Investments in the development of new sources of "clean" energy and modernisation of those already known amount to nearly $ 400 billion. Due to this, harmful emissions have been reduced by 1.1 billion tons per year, and emissions continue to fall.
The desire of mankind for renewable “clean” energy has caused 139 countries to switch to renewable energy sources by 2050, Russia being among them. The demand for energy in all 139 countries is supplied by a wide range of technical solutions: 19.4% - wind farms, 12.9% - sea wind farms, more than 60% - various types of solar stations and power plants, hydropower plants account for about 5%, geothermal, wave and tidal stations make up 2%. Bio-generation stations are not taken into account, because they use biofuels that produce some waste and occupy vast areas as well.
However, the world still comes up against a tough decision as to whether to continue to use nuclear power plants and power stations based on nuclear fusion or not as they cannot be called completely safe.