"Lighting up the lights of Beijing with the wind of Zhangbei", the poetic slogan is particularly eye-catching at the site of the world's first 500 kV Zhangbei flexible DC power grid project. The project is the world's first four terminal flexible DC power grid to transmit large-scale wind power, photovoltaic, pumped storage and other energy, and to transmit the clean energy of Zhangjiakou to Beijing. The ongoing Beijing Winter Olympics has become the first Olympic Games in history to use 100% green and clean electric energy. There is a wind on the dam, blowing from spring to winter. As an ecologically fragile area, Bashang is the last barrier for sandstorm to enter Beijing. Building a good ecological environment is the benefit of the people's livelihood. In recent years, taking advantage of the east wind of coordinated development, Beijing Tianjin Hebei and its surrounding areas have made outstanding achievements in taking green development as the guide, coordinating the integrated protection and restoration of mountains, rivers, forests, fields, lakes and grasses, especially deeply promoting atmospheric governance. Start system governance PM2 Since May 2013, Zou Yi, a public figure, has taken photos of Beijing sky every day. He used pictures to record the continuous improvement of air quality in Beijing. In Hebei, Wang Ruchun, a fellow photographer, has taken photos of the sky every day since 2014, naming the folder "tracking haze". "When the pollution is serious, let alone in the distance, the building opposite can't be seen clearly. Now, the gray in the picture is less and less, and the blue is more and more conspicuous." Wang Ruchun said that he had already renamed the folder "tracking the blue sky". In daxingyu mining area in the north of Jizhou District, Tianjin, in recent years, the singing of birds has replaced the roar of mountain quarrying, the smoke filled air has become fresh, and the wounds of riddled abandoned mines have been covered with "green clothes". Since February 2014, with the coordinated development of Beijing, Tianjin and Hebei becoming a major national strategy and the signing of the three bilateral agreements, environmental protection cooperation has risen to a new height. Especially in the field of atmospheric governance, the three places have practiced "responsibility sharing, information sharing, consultation and overall planning, joint prevention and control". There are many practices in the fields of coal-fired governance, industrial emission reduction, motor vehicle oil upgrading, shutdown of scattered pollution enterprises, law enforcement linkage, standard unification, forecast and early warning consultation and so on. In order to solve the "heart and lung disease", in recent years, Beijing has focused on PM2 5 pollution, deepen the "one microgram" action, promulgate and implement dozens of local standards, and achieve remarkable results in the blue sky defense war through measures such as reducing coal combustion, controlling motor vehicle pollution, controlling enterprise pollution and controlling dust. Relying on the overall layout of "two cities and two ports", Tianjin has synchronously realized industrial transformation and upgrading in the process of enterprise relocation and adjustment, developed emerging industries such as artificial intelligence, biomedicine, new energy and new materials, and accelerated the optimization and adjustment of the iron and steel industrial structure. Hebei has reduced the province's excess capacity in steel, coal, cement, flat glass and coking, implemented "relocation from the city" for enterprises in the main urban areas, raised standards, implemented industrial pollution control, and promoted the withdrawal of steel capacity in Baoding, Langfang, Zhangjiakou and Qinhuangdao. The data show that under the condition of synchronous improvement of regional air quality and favorable meteorological conditions, PM2 in Beijing's atmospheric environment in 2021 5. The average annual concentration drops to 33 μ g / m3, PM2 5 and ozone reach the national standard simultaneously. Zhangjiakou, the host city of some projects of the Beijing Winter Olympic Games, has achieved that all pollutant indicators have reached the national secondary standard for two consecutive years from 2020 to 2021. In the eight years since the coordinated development of Beijing, Tianjin and Hebei, the three places have worked together to adjust structure, promote transformation, improve legislation, strengthen supervision, scientific and technological assistance and industrial upgrading, and adopted a variety of means in the ecological field. The smog in the past few years locked the city, and now the blue sky and white clouds have become the norm. The "breathing change" in Beijing, Tianjin and Hebei reflects the effectiveness of the construction of ecological civilization. The improvement of air quality is not for the short-term goal of the Winter Olympics, but to improve people's well-being. The blue sky is not the only bright color of Beijing, Tianjin and Hebei. During the "14th five year plan" period, Beijing is making great strides towards the double carbon goal and implementing the green Beijing strategy. Yu Jianhua, deputy director of Beijing Municipal Bureau of ecological environment and spokesman, introduced that in 2021, Beijing will take the lead in implementing the "double control" mechanism of total carbon emission intensity, deepen the construction of carbon market and continue to fight the tough battle of pollution prevention and control. It is understood that Beijing's "14th five year plan" adheres to the integrated protection and restoration of mountains, rivers, forests, fields, lakes and grasses, takes carbon reduction as the key strategic direction, makes overall progress in pollution control, ecological protection and climate change response, strengthens the synergy of pollution and carbon reduction, and pays attention to PM2 5. Cooperate with ozone pollution control, deepen local and regional collaborative governance, and promote the comprehensive green transformation of economic and social development. (Xinhua News Agency)