根据大气观测得出的结论,中国的六化硫排放持续增长
Minde An1,2,3, Ronald G Prinn4, Luke M Western5,6
1Center for Global Change Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA. mindean@mit.edu.
Nature communications
|March 5, 2024
概括
中国的六化硫 (SF) 排放量从2011年到2021年大幅增加,影响了全球温室气体预算. 这些不断上升的SF6排放可能会阻碍中国.
科学领域:
- 大气化学 大气化学
- 气候科学 气候科学
- 环境监测 环境监测
背景情况:
- 六化硫 (SF) 是一种具有很长大气寿命的强有力的温室气体.
- 精确量化SF6排放对于了解全球气候预算和减缓战略至关重要.
研究的目的:
- 用长期大气观测来确定2011年至2021年间中国的SF6排放量.
- 评估中国国家SF6排放清单.
- 为了更好地了解全球SF预算.
主要方法:
- 利用长期大气观测量 SF6 排放量.
- 基于测量的估计与国家排放清单进行了比较.
- 分析了包括中国西部在内的不同地区对国家排放的贡献.
主要成果:
- 中国的SF6排放量从2011年的2.6 Gg/年大幅增加到2021年的5.1 Gg/年.
- 这一增长抵消了其他国家的排放量下降,对全球SF预算产生了重大影响.
- 来自中国西部的排放有很大贡献,可能是由于发电和输电活动.
结论:
- 中国不断增加的SF6排放量,相当于2021年的1.25亿CO2,可能会阻碍中国实现2060年碳中和目标的进展.
- 迫切需要实施具体的控制措施,以减轻SF排放的影响.
- 改进的排放清单和区域数据对于有效的气候政策至关重要.
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