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Defining a land boundary for sustainable livestock consumption

Van Zanten, Hannah H. E. and Herrero, Mario and Van Hal, Ollie and Röös, Elin and Muller, Adrian and Garnett, Tara and Gerber, Pierre J. and Schader, Christian and De Boer, Imke J. M. (2018). Defining a land boundary for sustainable livestock consumption. Global change biology. 24, 4185-4194
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Abstract

The need for more sustainable production and consumption of animal source food (ASF) is central to the achievement of the sustainable development goals: within this context, wise use of land is a core challenge and concern. A key question in feeding the future world is: how much ASF should we eat? We demonstrate that livestock raised under the circular economy concept could provide a significant, nonnegligible part (9-23g/per capita) of our daily protein needs (similar to 50-60g/per capita). This livestock then would not consume human-edible biomass, such as grains, but mainly convert leftovers from arable land and grass resources into valuable food, implying that production of livestock feed is largely decoupled from arable land. The availability of these biomass streams for livestock then determines the boundaries for livestock production and consumption. Under this concept, the competition for land for feed or food would be minimized and compared to no ASF, including some ASF in the human diet could free up about one quarter of global arable land. Our results also demonstrate that restricted growth in consumption of ASF in Africa and Asia would be feasible under these boundary conditions, while reductions in the rest of the world would be necessary to meet land use sustainability criteria. Managing this expansion and contraction of future consumption of ASF is essential for achieving sustainable nutrition security.

Authors/Creators:Van Zanten, Hannah H. E. and Herrero, Mario and Van Hal, Ollie and Röös, Elin and Muller, Adrian and Garnett, Tara and Gerber, Pierre J. and Schader, Christian and De Boer, Imke J. M.
Title:Defining a land boundary for sustainable livestock consumption
Series/Journal:Global change biology (1365-2486)
Year of publishing :2018
Volume:24
Page range:4185-4194
Number of Pages:10
Publisher:John Wiley & Sons Ltd
ISSN:1365-2486
Language:English
Publication Type:Article Review/Survey
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Food Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
Keywords:animal source food, greenhouse gas emissions, land boundary, land use, leftovers, livestock, recycling biomass, sustainable consumption, sustainable development goals
URN:NBN:urn:nbn:se:slu:epsilon-e-5024
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5024
ID Code:15667
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:27 Sep 2018 12:28
Metadata Last Modified:27 Sep 2018 12:28

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