China's coal mine methane regulations have not curbed growing emissions
China's coal mine methane regulations have not curbed growing emissions
复制标题
DOI：
10.1038/s41467-018-07891-7
复制
发表时间：
2019-01-29
影响因子：
16.6
通讯作者：
Schwietzke, Stefan
中科院分区：
文献类型：
--
作者：
Miller, Scot M.;Michalak, Anna M.;Schwietzke, Stefan
中国的人为甲烷排放量可能比世界上任何其他国家都要大。中国人为排放的最大一部分可归因于煤炭开采，但这些排放可能正在发生变化;中国颁布了一套关于煤矿甲烷（CMM）排放和利用的法规，并于2010年全面生效。在这里，我们使用GOSAT卫星的甲烷观测来评估亚洲（特别是中国）人为和自然排放总量的近期趋势。我们发现，从2010年到2015年，中国的排放量增加了1.1 +/- 0.4 Tg CH（4）yr（-1），最终在2015年达到61.5 +/- 2.7 Tg CH 4的人为和自然排放总量。观察到的趋势与2010年前的趋势一致，主要归因于煤炭开采。这些结果表明，中国的煤层气法规对中国甲烷排放量的持续增加没有明显的影响。
Anthropogenic methane emissions from China are likely greater than in any other country in the world. The largest fraction of China's anthropogenic emissions is attributable to coal mining, but these emissions may be changing; China enacted a suite of regulations for coal mine methane (CMM) drainage and utilization that came into full effect in 2010. Here, we use methane observations from the GOSAT satellite to evaluate recent trends in total anthropogenic and natural emissions from Asia with a particular focus on China. We find that emissions from China rose by 1.1 +/- 0.4 Tg CH(4)yr(-1) from 2010 to 2015, culminating in total anthropogenic and natural emissions of 61.5 +/- 2.7 Tg CH4 in 2015. The observed trend is consistent with pre-2010 trends and is largely attributable to coal mining. These results indicate that China's CMM regulations have had no discernible impact on the continued increase in Chinese methane emissions.