Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-019-13899-4 |
Increase in global emissions of HFC-23 despite near-total expected reductions | |
Stanley, K. M.1; 39;Doherty, S. J.2 | |
2020-01-21 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Germany; USA; Australia |
英文摘要 | Under the Kigali Amendment to the Montreal Protocol, new controls are being implemented to reduce emissions of HFC-23 (CHF3), a by-product during the manufacture of HCFC-22 (CHClF2). Starting in 2015, China and India, who dominate global HCFC-22 production (75% in 2017), set out ambitious programs to reduce HFC-23 emissions. Here, we estimate that these measures should have seen global emissions drop by 87% between 2014 and 2017. Instead, atmospheric observations show that emissions have increased and in 2018 were higher than at any point in history (15.9 +/- 0.9 Gg yr(-1)). Given the magnitude of the discrepancy between expected and observation-inferred emissions, it is likely that the reported reductions have not fully materialized or there may be substantial unreported production of HCFC-22, resulting in unaccounted-for HFC-23 by-product emissions. The difference between reported and observation-inferred estimates suggests that an additional similar to 309 Tg CO2-equivalent emissions were added to the atmosphere between 2015 and 2017. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000511940400001 |
WOS关键词 | CHF3 ; HALOCARBONS ; HISTORY ; GROWTH ; GASES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/249906 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Bristol, Sch Chem, Bristol, Avon, England; 2.Goethe Univ Frankfurt, Inst Atmospher & Environm Sci, Frankfurt, Germany; 3.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA; 4.CSIRO Oceans & Atmosphere, Climate Sci Ctr, Aspendale, Vic, Australia; 5.MIT, Ctr Global Change Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA |
推荐引用方式 GB/T 7714 | Stanley, K. M.,39;Doherty, S. J.. Increase in global emissions of HFC-23 despite near-total expected reductions[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Stanley, K. M.,&39;Doherty, S. J..(2020).Increase in global emissions of HFC-23 despite near-total expected reductions.NATURE COMMUNICATIONS,11(1). |
MLA | Stanley, K. M.,et al."Increase in global emissions of HFC-23 despite near-total expected reductions".NATURE COMMUNICATIONS 11.1(2020). |
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