Keyword: «carbon footprint»

In modern conditions, an important factor in the effective functioning of the national econ-omy is the use of renewable energy sources, which leads to a reduction in CO2 emissions (decar-bonization). The proposed article attempts international comparisons of the world's leading econo-mies on the main indicators reflecting the process of decarbonization: CO2 emissions per unit of GDP PPP, per capita, carbon intensity of energy consumption, the size of the carbon footprint and biological potential per capita. A comparison of various energy sources is also made based on the above costs (LSOE). In conclusion, the article defines the place of Russia in these processes

A physical mechanism is proposed for increasing the interfacial surface under the action of ultrasound during the bubbling process. The mechanism consists in accelerating the detachment of gas bubbles and in the formation of waves on the surface of the gas bubble. A model is proposed that makes it possible to determine the degree of increase in the interfacial surface, based on studying the formation of an ensemble of microscopic cavitation bubbles, vortex acoustic flows near an ultrasonic emitter, surface waves on the walls of a bubbling bubble (a probabilistic-statistical approach was used to determine the effect of shock waves of cavitation bubbles on the walls of bubbling bubbles). The main regularities are confirmed by experimental studies using high-speed filming methods. The results obtained serve as the basis for the development of a highly efficient technology for the utilization of harmful and hazardous gases that affect the climate and public health in liquids.