气候变化领域集成服务门户(CCPortal): Erratum: Reducing food’s environmental impacts through producers and consumers (Science DOI: 10.1126/science.aaq0216)

CCPortal

DOI	10.1126/science.aaw9908
	Erratum: Reducing food’s environmental impacts through producers and consumers (Science DOI: 10.1126/science.aaq0216)
	Poore J.; Nemecek T.
发表日期	2019
ISSN	0036-8075
卷号	363 期号:6429
英文摘要	In table S16 of the Research Article “Reducing food’s environmental impacts through producers and consumers,” the authors erroneously reported a published number from the IMAGE integrated assessment model, indicating that the land no longer required for food production under the “no animal products” scenario could remove 30 Gt CO2-C from the atmosphere (5.5 Gt CO2 yr−1 over 20 years) as it naturally succeeds to forest, shrubland, or grassland. However, the authors misunderstood the reported number, which also included CH4 and N2O emissions, and they considered a time frame that was too short to reflect the carbon dynamics of revegetation. percent is uptake by vegetation biomass, and 26% is soil carbon accumulation. This carbon uptake is additional to the 6.6 Gt yr−1 of avoided agricultural CO2eq emissions that the authors reported (which is a 49% reduction in the annual emissions of the food sector). In total, the “no animal products” scenario delivers a 28% reduction in global greenhouse gas emissions across all sectors of the economy relative to 2010 emissions (table S17). The scenario of a 50% reduction in animal products targeting the highest-impact producers delivers a 20% reduction in global greenhouse gas emissions. Because of the error, the authors did not recognize the true scale of the carbon sink and therefore only included it as a sensitivity in table S16. They have added a sentence to the main text [“In addition to the reduction in food’s annual GHG emissions, the land no longer required for food production could remove ~8.1 billion metric tons of CO2 from the atmosphere each year over 100 years as natural vegetation re-establishes and soil carbon re-accumulates, based on simulations conducted in the IMAGE integrated assessment model (17)”]; adjusted the text describing the second scenario [to read “This achieves 71% of the previous scenario’s GHG reduction (a reduction of ~10.4 billion metric tons of CO2eq per year, including atmospheric CO2 removal by regrowing vegetation)”]; and changed the sensitivity in table S16 to report a sensitivity on the carbon sink, rather than reporting the sink itself. In accordance with these changes, they have also replaced reference 146 and added a new reference, numbered 151. An unrelated error in the legend to Fig. 3 has also been corrected, replacing “The gray line represents 10th-percentile emissions” with “The gray line represents average emissions”. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	erratum; Animalia
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245114
推荐引用方式 GB/T 7714	Poore J.,Nemecek T.. Erratum: Reducing food’s environmental impacts through producers and consumers (Science DOI: 10.1126/science.aaq0216)[J],2019,363(6429).
APA	Poore J.,&Nemecek T..(2019).Erratum: Reducing food’s environmental impacts through producers and consumers (Science DOI: 10.1126/science.aaq0216).Science,363(6429).
MLA	Poore J.,et al."Erratum: Reducing food’s environmental impacts through producers and consumers (Science DOI: 10.1126/science.aaq0216)".Science 363.6429(2019).