A few days ago, the new issue of "Hao Si Hui" sharing session was held online. The theme of this sharing session is "Black Carbon: A Little-Mentioned Climate Assassin", and experts and scholars are invited to discuss the core issues of black carbon.
Black carbon is a short-lived climate pollutant formed by the incomplete combustion of fossil fuels and biomass fuels, which not only has a strong warming effect, but also serves as an air pollutant (PM).2.5One of the main ingredients. Due to the multiple impacts of black carbon on climate change, public health and glacier retreat, it has attracted international attention and discussion in recent years.
Zhang Yulan, a researcher at the Northwest Institute of Ecology, Environment and Resources of the Chinese Academy of Sciences, believes that atmospheric black carbon from South Asia and other surrounding areas enters the Qinghai-Tibet Plateau through the upper altitudes and valleys, leading to the aggravation of glaciers on the Qinghai-Tibet Plateau. The acceleration of glacier melt leads to the release of other pollutants, which in turn affects the ecological environment such as downstream lakes, and also poses a potential harm to human health.
Hu Min, director of the State Key Joint Laboratory of Environmental Modelling and Pollution Control at Peking University, said that compared with greenhouse gases, it is more difficult to judge the climate effects of black carbon, including the complex process of black carbon affecting the climate, the properties of black carbon changing in the process of atmospheric aging, and the emission sources emitting other types of particulate matter in addition to black carbon, which is difficult to distinguish.
Chen Mei'an, senior project director and senior analyst of the Green Innovation Development Research Institute, believes that China's air pollution prevention and control policies have a positive impact on black carbon emission reduction, such as reducing the concentration of fine particulate matter and promoting the coordinated control of air pollutants and greenhouse gases. In the industry, energy conservation and emission reduction measures have been adopted, and agriculture is committed to the promotion of clean stoves, coal-to-gas and coal-to-electricity actions, which have a positive effect on black carbon emission reduction, and China's black carbon emissions in the industrial and civil fields have shown a steady downward trend in the past 30 years. Wang Yanhui, deputy director of the Institute of Green Innovation and Development, shared her experience during the Antarctic expedition, combined with her recent experience in Antarctic scientific expeditions, introduced the impact of black carbon brought by human activities on Antarctica, and the existing international governance mechanism for Antarctic protection.
Organized by the Institute of Green Innovation and Development, the "Good Idea" series of sharing sessions will focus on the hot topic of global climate change, inviting cross-disciplinary and cross-regional experts to gather together to analyze core issues and share and promote best practices.