气候变化领域集成服务门户(CCPortal): Robust eligibility criteria essential for new global scheme to offset aviation emissions

CCPortal

DOI	10.1038/s41558-019-0415-y
	Robust eligibility criteria essential for new global scheme to offset aviation emissions
	Warnecke C.; Schneider L.; Day T.; La Hoz Theuer S.; Fearnehough H.
发表日期	2019
ISSN	1758678X
卷号	9 期号:3
英文摘要	Aviation may have contributed as much as 4.9% to global radiative forcing in 2005 and its carbon dioxide emissions could grow by up to 360% between 2000 and 2050 1 . In 2016, the International Civil Aviation Organization adopted a global scheme requiring airline operators to offset increases in carbon dioxide emissions from international flights above 2020 levels 2,3 . Here we show that the scheme will only compensate for the emissions increase if robust criteria for the eligibility of offset credits are adopted. Offset supply from already implemented greenhouse gas abatement projects registered under the Clean Development Mechanism alone could exceed demand from International Civil Aviation Organization’s scheme. Most of these projects continue abatement even if they cannot sell offset credits. If the scheme allows airline operators the unlimited use of offset credits from already implemented projects, it will result in no notable emissions reductions beyond those that would occur anyway and neither offer incentives for new investments nor reward previous investments in offset projects. We recommend limiting the eligibility to new projects or projects that are at risk of discontinuing greenhouse gas abatement without further support. The findings are critical for negotiations under both the International Civil Aviation Organization and the Paris Agreement. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124447
作者单位	NewClimate Institute, Cologne/Berlin, Germany; Environmental Systems Analysis Group, Wageningen University, Wageningen, Netherlands; Stockholm Environment Institute, Somerville, MA, United States
推荐引用方式 GB/T 7714	Warnecke C.,Schneider L.,Day T.,et al. Robust eligibility criteria essential for new global scheme to offset aviation emissions[J],2019,9(3).
APA	Warnecke C.,Schneider L.,Day T.,La Hoz Theuer S.,&Fearnehough H..(2019).Robust eligibility criteria essential for new global scheme to offset aviation emissions.Nature Climate Change,9(3).
MLA	Warnecke C.,et al."Robust eligibility criteria essential for new global scheme to offset aviation emissions".Nature Climate Change 9.3(2019).