On June 12, the 14th technical seminar "How to Coordinate Control of Greenhouse Gas Emissions and Atmospheric Haze under the New Situation in 2018" was held at Tsinghua University. The participating experts took the phenomenon of accelerated economic development, energy consumption and carbon emission growth in the first quarter of 2018 as the background, analyzed the reasons in depth, and predicted the impact of this phenomenon on China's realization of the short-term and medium-term goals of greenhouse gas emission control. In addition, the experts also discussed the current situation and trend of China's atmospheric haze control, analyzed and discussed the reasons for the decline of air quality in some areas, and put forward some policy suggestions for China's effective and coordinated control of greenhouse gas emissions and atmospheric haze under the new situation.

On the afternoon of June 12, the 14th Technical Seminar of China Energy Modeling Forum: How China Coordinated Control of Greenhouse Gas Emissions and Atmospheric Haze under the New Situation in 2018 was held at Tsinghua University. Experts participating in the meeting conducted an in-depth analysis of the reasons for the accelerated economic development, energy consumption growth and carbon emission growth in the first quarter of 2018 that have recently attracted widespread attention and discussion, and looked forward to and analyzed the development of the new situation. Controlling for impacts related to near- and medium-term goals. In addition, the meeting also discussed the current situation and trend of China's atmospheric haze control, and analyzed and discussed the reasons for the recent decline in air quality in some areas. Finally, the participating experts discussed with you how China should effectively control greenhouse gas and air pollutant emissions under the current new situation, so as to maximize social, environmental and economic benefits.

Dr. Zhang Jianyu, an academic member of the China Energy Modeling Forum (CEMF) and chief representative of the Beijing Representative Office of the US Environmental Defense Fund, presided over the seminar. More than 40 teachers and students from Tsinghua University, China University of Mining and Technology, Beijing Institute of Technology and other universities participated in the meeting.

Professor Hu Zhaoguang, former vice president of the State Grid Energy Research Institute, made his speech first. He mainly analyzed the relationship between China's electricity consumption, coal power development and greenhouse gas emissions. As of the end of 2017, in my country's energy structure, thermal power (coal power) accounted for more than 55% of the total installed capacity. Due to technological progress, while the utilization hours of power generation equipment have increased, the unit coal consumption has decreased, accounting for about 60% of the total power generation [Office1]. In recent years, under the influence of multiple factors such as shutting down small-capacity units and technological progress, although my country's thermal power generation is much higher than that of the United States, the total amount of air pollutants (sulfur dioxide, nitrogen oxides and particulate matter) emitted is relatively small.

Professor Hu explained the development and operation of industrial enterprises based on the data on enterprise electricity consumption, and explained and analyzed the reasons for the sharp increase in electricity consumption in the first quarter. He pointed out: In the first four months of 2018, in terms of electricity consumption, the industry that contributed the most to 20[Office2] was the iron and steel industry. The proportion of production methods in the steel industry has increased. In terms of growth rate, industries such as metal manufacturing, automobile manufacturing, communications, computers, and electronics manufacturing have the fastest growth rates. Professor Hu believes that the growth of the steel industry is unsustainable, while the prosperity of the manufacturing industry reflects the cyclical recovery of our country's economy.

Professor Hu believes that the power industry has great potential for energy saving. In the long-term plan, the proportion of thermal power in the total power structure can be adjusted from the original 70% to 50%. At the same time, with the development of artificial intelligence and computing power, the prediction accuracy of renewable energy processing will be greatly improved, the power grid's ability to absorb renewable energy will be enhanced, the constraints on grid connection will be weakened, and the ability of renewable energy to fill the newly increased electricity demand enhanced. The reduction of the power industry's dependence on coal resources and the increase in the consumption of renewable energy will be of great significance to my country's reduction of greenhouse gas emissions and response to climate change. The low-carbon revolution in the power industry brought about by the technological revolution will promote the sustainable development of the entire society.

Researcher Wang Yuesi from the Institute of Atmospheric Physics of the Chinese Academy of Sciences elaborated on the current situation and trends of atmospheric smog in China. Researcher Wang Yuesi pointed out that from the observational data, compared with 2013, the overall air pollutants in 2017 have dropped significantly. Specifically, the concentrations of PM2.5, PM10, carbon monoxide, and sulfur dioxide all decreased accordingly. Nitrogen dioxide and ozone are not optimistic. The concentration of nitrogen dioxide generally shows a downward trend, but the rate of decline is relatively slow. Researcher Wang Yuesi believes that part of the reason for this phenomenon is that desulfurization facilities in power plants are widely used and have high efficiency, while in denitrification facilities The expected efficiency cannot be achieved. In addition, since 2013, the concentration of ozone in air pollutants has shown a clear upward trend, with a growth rate of 20%. Correspondingly, in terms of the number of air pollution days, the number of days with good air pollution has increased significantly, and the number of days with heavy pollution has decreased significantly. At the same time, the number of days with PM2.5 exceeding the standard has decreased, while the number of days with excessive ozone has increased. This is a phenomenon worthy of attention. Researcher Wang said that in the future, PM2.5 will still be the focus of my country's air pollution prevention and control. We should focus on emissions from industrial emissions, civil sources, and traffic sources, and focus on source control.

Tian Chunxiu, deputy director of the Environmental and Economic Policy Research Center of the Ministry of Ecology and Environment, took the MAP model analysis system and the environmental and economic evaluation method of coordinated control measures as examples, and introduced the research progress of my country's coordinated control of greenhouse gases and atmospheric smog. The MAP model system combines the top-down CGE model and the bottom-up TIMES model. Through quantitative research and analysis, technologies with good emission reduction effects and economic efficiency in key industries were screened, such as CDQ, sintering waste heat power generation, regenerative combustion and other technologies in the iron and steel industry; waste heat power generation, automatic control and energy in the cement industry Management, fuel raw material substitution, co-processing waste, mixed material doping and other technologies. During the screening process, the synergistic effect of the front-end and process control technology measures was significant, and the synergistic effect of the terminal control technology was positive or negative. Director Tian introduced the collaborative research conducted by the Political Research Center at the city level . He analyzed, the synergistic effects of specific emission reduction measures implemented in cities such as Chongqing, Shenzhen, Xiamen, and Baoding in implementing air pollution prevention and control action plans. The research finds that different cities have different potentials and emphases of collaborative control depending on the degree of development, awareness of decision makers, energy structure, industrial structure, and geographical location. When formulating a collaborative control plan, relevant departments should make differentiated choices according to the characteristics of their respective cities. For example, northern industrial cities should strengthen central heating, clean heating boilers, and scattered coal treatment; cities with developed economies and good environmental backgrounds should pay attention to mobile source pollution control and the promotion of new energy vehicles; for fast-growing industrial cities, they should strengthen Treatment of industrial source pollution, such as the elimination of outdated production capacity. Finally, Director Tian proposed that in the coordinated control of greenhouse gases and atmospheric smog, it is necessary to strengthen the coordination and overall planning of air pollutants and greenhouse gas control, increase scientific and technological investment in the integrated and coordinated control of greenhouse gases and atmospheric smog, and actively carry out pilot and demonstration of collaborative control, etc.