Reporters learned from the Aerospace Information Innovation Institute of the Chinese Academy of Sciences (hereinafter referred to as the "Academy") on the 5th that, based on the monitoring data of Fengyun 3D polar orbit meteorological satellite fire point, the research team of the Academy quantified the global biomass combustion carbon emissions and successfully established a daily high-resolution biomass combustion carbon emission inventory dataset. The relevant research results have been published online in the top tier Earth science journal, Earth System Science Data. Forest fires, grassland fires, crop straw burning and other biomass burning are important sources of global carbon emissions, exhibiting characteristics such as periodicity, randomness, multi-point sources, wide range, and difficult monitoring. Accurately quantifying the carbon emissions from biomass burning is the foundation for clarifying the carbon cycle of terrestrial ecosystems and the prerequisite for elucidating the global and regional carbon balance, "said Shi Yusheng, corresponding author of the paper and associate researcher at the Aerospace Science and Technology Institute. The latest research results show that from 2020 to 2022, the global carbon emissions from biomass burning reached 2.59 billion tons per year. There are significant differences in carbon emissions from biomass combustion over time and space. Data shows that the carbon emissions from biomass burning in southern Africa are the highest, reaching 850 million tons per year; Next are 530 million tons/year in southern South America, 390 million tons/year in northern Africa, and 200 million tons/year in Southeast Asia. The study also found that grassland fires rank first in the global carbon emissions from biomass burning, with an average annual contribution of 1.21 billion tons of carbon, accounting for 46.7% of the total emissions; Next are shrub fires and tropical forest fires, accounting for 33% and 12.1% of the total emissions, respectively. Shi Yusheng stated that this study provides a new approach and method for finely quantifying the impact of global biomass combustion emissions on changes in atmospheric carbon dioxide concentration, and provides a scientific basis for biomass combustion control. (New Society)