According to the "2022 China Greenhouse Gas Bulletin (Total No. 12)" released by the China Meteorological Administration on the 1st, in 2022, the carbon dioxide concentration observed at the Waliguan Global Atmospheric Background Station in Qinghai increased by about 2 compared with 20213ppm, which is basically the same as the global growth rate; In the past 10 years (2013-2022), the average absolute increase in carbon dioxide concentration was 216ppm, which is lower than the global increase in the same period (2.).46ppm)。Satellite remote sensing monitoring shows that in 2022, the annual average increase in atmospheric carbon dioxide concentration in China's land area is significantly lower than the average absolute increase in the past 10 years.
This is the 12th consecutive year that China's greenhouse gas monitoring has been released.
The communiqué noted that in 2022, concentrations of carbon dioxide, methane and nitrous oxide observed at the Warikan Global Atmospheric Background Station were roughly comparable to the average concentrations in the mid-latitudes of the Northern Hemisphere. Methane concentrations increased by about 14 ppb compared to 2021, slightly lower than the global increase of 16 ppb over the same period. In addition, in 2022, the carbon dioxide and methane concentrations of six regional background stations in China mostly showed an increasing trend compared with 2021.
It is understood that since the 80s of the 20th century, the China Meteorological Administration has successively built an atmospheric background observation station network composed of one global atmospheric background station and six regional atmospheric background stations, so that China can realize the observation of more than 30 kinds of greenhouse gases in 7 categories controlled by the Kyoto Protocol. In the future, the China Meteorological Administration will further improve its observation capabilities, form a full-factor greenhouse gas background observation backbone network covering 16 key climate areas in China and radiating the world's major latitude zones, and plans to launch the Fengyun-3 meteorological satellite 08 in 2025, equipped with higher-performance global greenhouse gas monitoring instruments.
The relevant person in charge of the China Meteorological Administration said that in the next step, China will accelerate the development and improvement of China's independent global carbon source and sink monitoring and verification support system based on higher-precision global greenhouse gas observation data integrated by the sky and ground, so as to provide scientific and technological support for coping with global climate change and successfully achieving China's "double carbon" goal.
Guangming ** reporter Chen Haibo).