How big is the carbon reduction space in the city?

   Our reporter Cao Hongyan

  "The total area of ​​public buildings in my country is not high, but the energy intensity is not small. From the emission of building operation, it is equivalent to 48 kilograms of carbon dioxide per square meter. If the emission is reduced by half to the level of Japan, it will reduce the emission of 300 million tons. carbon dioxide."

  "In winter, heating buildings in northern my country emit about 36 kilograms of carbon dioxide per square meter. If we learn from Poland's practice and change the heating and measurement of buildings from being priced according to square meters to how much heat is paid for, this change alone will reduce the One-third of the emissions and 250 million tons of carbon dioxide less."


  Qiu Baoxing, academician of the International Eurasian Academy of Sciences, former deputy minister of the Ministry of Housing and Urban-Rural Development, and chairman of the China Urban Science Research Association, at the "Striving to be a 'Double Carbon' Leader, Chinese Cities in Action" event hosted by the China Environmental Journalists Association In one sentence, it revealed the huge space for urban carbon reduction.

  "It is necessary to be the person who solves the bell." Qiu Baoxing pointed out that from the perspective of total greenhouse gas emissions, cities are the main body of man-made greenhouse gas emissions, accounting for 75% of the total greenhouse gas emissions. The two-carbon” goal is extremely important.

  The implementation of the "dual carbon" strategy with cities as the main body is also conducive to the layout of renewable energy and carbon sink bases according to local conditions, "generating" a carbon neutral system from the bottom up, and "forming" an industry carbon neutral system from the top down. Complementary synergy.

  Since July 2010, the National Development and Reform Commission has launched three batches of national low-carbon city pilot projects to explore a win-win model for emission reduction and development.

The study found that the low-carbon development effect of pilot cities was higher than that of non-pilot areas, and the earlier the cities started low-carbon pilot projects, the better the emission reduction effect.

  "In the process of rapid urbanization in my country, we must adopt differentiated carbon peaking paths for different types of cities. We must make full use of the existing regional coordinated development strategy, effectively allocate resources, and promote urban carbon peaking and carbon neutrality through regional coordination. It is necessary to place urban climate adaptation as important as carbon neutrality." said Zhuang Guiyang, deputy director of the Institute of Ecological Civilization, Chinese Academy of Social Sciences.

  A study from the research team of the Chinese Academy of Environmental Sciences and the research team of the Public Environmental Research Center shows that at present, various regions attach great importance to the "dual carbon" work, but as an important policy implementation body for carbon emission control, most cities carbon The peak goals and program paths are not yet clear, and the "dual-carbon" planning and management capabilities need to be strengthened.

  According to Yang Pingjian, director of the Environmental Sociology Office of the Chinese Academy of Environmental Sciences, the first phase of the study, called the carbon neutral index evaluation of China's urban carbon peaking, involved 110 key cities.

The results of the evaluation study show that among the first cities in the country to confirm the carbon peak, Beijing ranks first, Shenzhen, Guangzhou and Shanghai, which are also first-tier cities, all enter the top five, and Wuhan ranks fourth.

  The evaluation study found that since the "13th Five-Year Plan", the participating cities have made progress in controlling the growth of carbon emissions, and 39% of the participating cities have shown a strong decoupling trend between carbon emissions and economic growth.

However, the average growth rate of carbon emissions in the 110 participating cities is still higher than the estimated national growth rate.

"This means that as cities with relatively developed economies and large populations, the participating cities are not yet in a leading position in carbon reduction." said Ma Jun, director of the Public Environment Research Center.

  In response to the problems identified in the research findings and the index evaluation, the urban carbon peak carbon neutral index research group proposed the following countermeasures: it is recommended that cities compare the scores of each refined index in the evaluation index, and formulate appropriate measures according to their own actual conditions and development stages. "Double carbon" action goals and plans; it is recommended to accelerate the construction of a regional and even national dispatch and complementary energy supply system to resolve the problem of spatial mismatch between economic and energy centers and renewable energy centers; it is recommended to build scientific urban "dual carbon" management , assessment and evaluation system, and properly handle the relationship between short-term control and long-term high-quality development in assessment and evaluation.

Our reporter Cao Hongyan