气候变化领域集成服务门户(CCPortal): Net-zero approaches must consider Earth system impacts to achieve climate goals

CCPortal

DOI	10.1038/s41558-023-01862-7
	Net-zero approaches must consider Earth system impacts to achieve climate goals
	Zickfeld, Kirsten; Macisaac, Alexander J.; Canadell, Josep G.; Fuss, Sabine; Jackson, Robert B.; Jones, Chris D.; Lohila, Annalea; Matthews, H. Damon; Peters, Glen P.; Rogelj, Joeri; Zaehle, Soenke
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
起始页码	1298
结束页码	1305
卷号	13 期号:12
英文摘要	Commitments to net-zero carbon dioxide (CO2) or greenhouse gas (GHG) emissions targets now cover 88% of countries' emissions. Underlying the accounting behind net-zero frameworks is the assumption that emissions can be balanced with removals such that their net climate effect is zero. However, when considering the full climate impacts of CO2 emissions and removals, there are reasons to expect that the two are not equivalent in terms of their climate outcomes. We identify potential contributors to non-equivalence, including impermanence, biogeophysical and non-CO2 GHG effects, and argue that these non-equivalencies need to be accounted for to achieve climate goals. Given key uncertainties about the full climate impact of CO2 removal, it is prudent to prioritize emission reductions over removals. Underlying net-zero GHG accounting approaches is the assumption that emissions can be balanced by removals such that their net climate effect is zero. However, CO2 removals may not be equal and opposite to CO2 emissions in their climate impact, indicating the need to consider non-CO2 effects.
英文关键词	CARBON-OFFSET PROGRAMS; LAND-USE CHANGE; EVALUATING PROTOCOLS; TEMPERATURE RESPONSE; NITROUS-OXIDE; MANAGEMENT; EMISSIONS; AFFORESTATION; STANDARDS; CO2
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001124347300019
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/282504
作者单位	Simon Fraser University; Saint Francis Xavier University - Canada; Humboldt University of Berlin; Stanford University; Met Office - UK; Hadley Centre; Finnish Meteorological Institute; University of Helsinki; Concordia University - Canada; Imperial College London; Imperial College London; International Institute for Applied Systems Analysis (IIASA); Max Planck Society
推荐引用方式 GB/T 7714	Zickfeld, Kirsten,Macisaac, Alexander J.,Canadell, Josep G.,et al. Net-zero approaches must consider Earth system impacts to achieve climate goals[J],2023,13(12).
APA	Zickfeld, Kirsten.,Macisaac, Alexander J..,Canadell, Josep G..,Fuss, Sabine.,Jackson, Robert B..,...&Zaehle, Soenke.(2023).Net-zero approaches must consider Earth system impacts to achieve climate goals.Nature Climate Change,13(12).
MLA	Zickfeld, Kirsten,et al."Net-zero approaches must consider Earth system impacts to achieve climate goals".Nature Climate Change 13.12(2023).