The impact of China's carbon neutrality target on its energy consumption structure by 2050

Promoting energy transformation is a major issue in achieving China's carbon neutrality target. The changes in China's energy consumption stemming from the policies related to this issue were simulated based on the energy policy simulation model. The results show the following. (1) Implementing related policies will significantly decrease total primary energy consumption, and non-fossil energy will be China's main source of energy consumption by 2050. (2) The energy consumption corresponding to buildings, transportation, and industry will be electricity-led by 2050, and electricity will mainly be generated with non-fossil energy sources. (3) In 2030, China will reach a carbon peak, and non-fossil energy will account for 43% of the country's primary energy consumption, comprising electrical (73%), solar (11%), wind (7%), hydro (7%) and biomass (2%) energy. (4) COVID-19 has had a short-term driving effect on this process, as it initially slowed down global economic cooperation, but it has had a hindering effect on the process in the long term.

Analysis of the disposal of medical waste management at home and abroad and suggestions on countermeasures

The widespread outbreak of COVID-19 in 2020 has aroused great concern of the government and the public on the environmental management and safe disposal of medical wastes. Developed countries have established a relatively comprehensive medical waste management system, while the China's medical waste management system and treatment methods still need to be improved. The current status of the production, management and disposal of medical wastes were analyzed systematically in this paper to summarize and analyze the problems of medical waste management and disposal in China. Learned from the foreign practices, effective methods such as strengthening the classified medical waste collection management system, the establishment of the producers responsible recycling system, the full implemention of the centralized processing system, the strengthening of the whole process of tracking management of each link, the deepening of the disposal technology research, and the building of the emergency disposal of medical wastes management system were put forward to provide references for further standardizing the development in this field. © 2020, China Environmental Science Press. All rights reserved.