全球智库信息集成服务系统(G2TT): How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals?

G2TT

来源类型	Article
规范类型	其他
DOI	10.1111/gcb.12160
	How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals?
	Smith P; Haberl H; Popp A; Erb K-H; Lauk C; Harper R; Tubiello FN; Bottcher H
发表日期	2013
出处	Global Change Biology 19 (8): 2285-2302
出版年	2013
语种	英语
摘要	Feeding 9.10 billion people by 2050 and preventing dangerous climate change are two of the greatest challenges facing humanity. Both challenges must be met while reducing the impact of land management on ecosystem services that deliver vital goods and services, and support human health and well-being. Few studies to date have considered the interactions between these challenges. In this study we briefly outline the challenges, review the supply- and demand-side climate mitigation potential available in the Agriculture, Forestry and Other Land Use AFOLU sector and options for delivering food security. We briefly outline some of the synergies and trade-offs afforded by mitigation practices, before presenting an assessment of the mitigation potential possible in the AFOLU sector under possible future scenarios in which demand-side measures codeliver to aid food security. We conclude that while supply-side mitigation measures, such as changes in land management, might either enhance or negatively impact food security, demand-side mitigation measures, such as reduced waste or demand for livestock products, should benefit both food security and greenhouse gas (GHG) mitigation. Demand-side measures offer a greater potential (1.5-15.6 Gt CO2-eq/yr) in meeting both challenges than do supply-side measures (1.5-4.3 Gt CO2-eq/yr at carbon prices between 20 and 100 US$ tCO2-eq/yr), but given the enormity of challenges, all options need to be considered. Supply-side measures should be implemented immediately, focussing on those that allow the production of more agricultural product per unit of input. For demand-side measures, given the difficulties in their implementation and lag in their effectiveness, policy should be introduced quickly, and should aim to codeliver to other policy agenda, such as improving environmental quality or improving dietary health. These problems facing humanity in the 21st Century are extremely challenging, and policy that addresses multiple objectives is required now more than ever.
主题	Ecosystems Services and Management (ESM)
关键词	AFOLU Agriculture Climate Ecosystem services Food security Forestry GHG Mitigation
URL	http://pure.iiasa.ac.at/id/eprint/10391/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129724
推荐引用方式 GB/T 7714	Smith P,Haberl H,Popp A,et al. How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals?. 2013.