Kreidenweis, U; Lautenbach, S; Koellner, T: Regional or global? The question of low-emission food sourcing addressed with spatial optimization modelling, Environmental Modelling & Software, 82, 128–141 (2016), online: 2016-04-30, doi:10.1016/j.envsoft.2016.04.020 [Link]
Key words: Local food; Food miles; Staple crops; Optimization modelling; Life cycle assessment; Greenhouse gases
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.
Upcoming ...

BayCEER Colloquium:
Th. 2018-04-26 now
Anticipating biome shifts
Ökologisch-Botanischer Garten:
Su. 2018-04-29
Führung: Sängern auf der Spur: Vogelstimmen im ÖBG (mit LBV)
Su. 2018-05-06
gestern - heute - morgen: Die Entwicklung des ÖBG
Su. 2018-05-06
Eröffnung Jubiläumsausstellung
Su. 2018-05-06
40 Jahre ÖBG & 20 Jahre Freundeskreis ÖBG e.V. - Ausstellung zur Geschichte
Weather research site
Luftdruck (356m): 969.9 hPa
Lufttemperatur: 10.3 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 8.9 km/h
Wind (Max.): 17.6 km/h
Windrichtung: SW

...more
Globalstrahlung: 2 W/m²
Lufttemperatur: 7.1 °C
Niederschlag: 0.3 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 9.8 km/h
Wind (Max.): 26.8 km/h

...more