气候变化领域集成服务门户(CCPortal): Timelines for mitigating the methane impacts of using natural gas for carbon dioxide abatement

CCPortal

DOI	10.1088/1748-9326/ab2577
	Timelines for mitigating the methane impacts of using natural gas for carbon dioxide abatement
	Klemun M.M.; Trancik J.E.
发表日期	2019
ISSN	17489318
卷号	14 期号:12
英文摘要	Reducing carbon dioxide (CO2) emissions through a reliance on natural gas can create a hidden commitment to methane (CH4) leakage mitigation. While the quantity of CH4 leakage from natural gas has been studied extensively, the magnitude and timing of the CH4 mitigation required to meet climate policy goals is less well understood. Here we address this topic by examining the case of US electricity under a range of baseline natural gas leakage rate estimates and emissions equivalency metrics for converting CH4 to CO2-equivalent emissions. We find that CH4 emissions from the power sector would need to be reduced by 30%-90% from today's levels by 2030 in order to meet a CO2-equivalent climate policy target while continuing to rely on natural gas. These CH4 emissions reductions are greater than the required CO2 reductions under the same policy. Alternatively, expanding carbon-free sources more rapidly could meet the 2030 target without reductions in natural gas leakage rates. The results provide insight on an important policy choice in regions and sectors using natural gas, between emphasizing a natural gas supply chain clean-up effort or an accelerated transition toward carbon-free energy sources. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Climate policy; Emissions equivalency metric; Fugitive emissions; Global warming potential; Greenhouse gases; Methane leakage; Natural gas
语种	英语
scopus关键词	Carbon dioxide; Free energy; Gas emissions; Gas supply; Global warming; Greenhouse gases; Methane; Natural gas; Supply chains; Carbon dioxide emissions; Climate policy; Emissions reduction; Fugitive emissions; Global warming potential; Leakage mitigation; Methane leakage; Natural gas leakage; Natural gas wells; abatement cost; carbon emission; emission control; environmental policy; global warming; greenhouse gas; methane; mitigation; natural gas; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154255
作者单位	Institute for Data, Systems and Society, Massachusetts Institute of Technology, United States; Santa Fe Institute, United States
推荐引用方式 GB/T 7714	Klemun M.M.,Trancik J.E.. Timelines for mitigating the methane impacts of using natural gas for carbon dioxide abatement[J],2019,14(12).
APA	Klemun M.M.,&Trancik J.E..(2019).Timelines for mitigating the methane impacts of using natural gas for carbon dioxide abatement.Environmental Research Letters,14(12).
MLA	Klemun M.M.,et al."Timelines for mitigating the methane impacts of using natural gas for carbon dioxide abatement".Environmental Research Letters 14.12(2019).