Regional or global?

• Verfasst von: Kreidenweis, Ulrich [VerfasserIn]
• Verfasst von: Lautenbach, Sven [VerfasserIn]
• Verfasst von: Köllner, Thomas [VerfasserIn]
• Titel: Regional or global?
• Titelzusatz: the question of low-emission food sourcing addressed with spatial optimization modelling
• Verf.angabe: Ulrich Kreidenweis, Sven Lautenbach, Thomas Koellner
• E-Jahr: 2016
• Jahr: 30 April 2016
• Umfang: 14 S.
• Fussnoten: Gesehen am 06.12.2018
• Titel Quelle: Enthalten in: Environmental modelling & software
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 1997
• Jahr Quelle: 2016
• Band/Heft Quelle: 82(2016), Seite 128-141
• ISSN Quelle: 1873-6726
• DOI: doi:10.1016/j.envsoft.2016.04.020
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Food miles
• Sach-SW: Greenhouse gases
• Sach-SW: Life cycle assessment
• Sach-SW: Local food
• Sach-SW: Optimization modelling
• Sach-SW: Staple crops
• K10plus-PPN: 1584873108

Abstract

Does producing staple food locally cause fewer greenhouse gas emissions than food sourced through imports from another continent? To address this question we used a spatial optimization approach that minimized greenhouse gas emissions from production and transport of five food commodities (barley, maize, oil, sugar and wheat) and compared this to a setting of local production where distances between production and consumption were minimized. We focused on the example of two countries - Brazil and Germany - in order to allow modelling at high spatial resolution. In the model, a minimization of greenhouse gas emissions led to an allocation of large shares of production to locations abroad. In contrast, the local production case, optimized on distance only, resulted in higher greenhouse gas emissions. Our findings show that despite additional transport needs for imports, specialization of countries on the production of specified crops can represent a low climate impact strategy.