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Main Title: The impact of high-end climate change on agricultural welfare
Author(s): Stevanović, Miodrag
Popp, A.
Lotze-Campen, H.
Dietrich, J. P.
Müller, C.
Bonsch, Markus
Schmitz, C.
Bodirsky, B. L.
Humpenöder, Florian
Weindl, I.
Type: Article
Language Code: en
Abstract: Climate change threatens agricultural productivity worldwide, resulting in higher food prices. Associated economic gains and losses differ not only by region but also between producers and consumers and are affected by market dynamics. On the basis of an impact modeling chain, starting with 19 different climate projections that drive plant biophysical process simulations and ending with agro-economic decisions, this analysis focuses on distributional effects of high-end climate change impacts across geographic regions and across economic agents. By estimating the changes in surpluses of consumers and producers, we find that climate change can have detrimental impacts on global agricultural welfare, especially after 2050, because losses in consumer surplus generally outweigh gains in producer surplus. Damage in agriculture may reach the annual loss of 0.3% of future total gross domestic product at the end of the century globally, assuming further opening of trade in agricultural products, which typically leads to interregional production shifts to higher latitudes. Those estimated global losses could increase substantially if international trade is more restricted. If beneficial effects of atmospheric carbon dioxide fertilization can be realized in agricultural production, much of the damage could be avoided. Although trade policy reforms toward further liberalization help alleviate climate change impacts, additional compensation mechanisms for associated environmental and development concerns have to be considered.
Issue Date: 2016
Date Available: 19-Apr-2018
DDC Class: 500 Naturwissenschaften und Mathematik
Subject(s): climate change impacts
welfare economics
international trade
climate change adaptation
Journal Title: Science Advances
Publisher: American Association for the Advancement of Science (AAAS)
Publisher Place: Washington, DC [u.a.]
Volume: 2
Issue: 8
Article Number: e1501452
Publisher DOI: 10.1126/sciadv.1501452
EISSN: 2375-2548
ISSN: 2375-2548
Appears in Collections:Inst. Landschaftsarchitektur und Umweltplanung » Publications

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