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Journal Article

Hungry cities: how local food self-sufficiency relates to climate change, diets, and urbanisation

Authors
/persons/resource/kriewald

Kriewald,  Steffen
Potsdam Institute for Climate Impact Research;

/persons/resource/prajal.pradhan

Pradhan,  Prajal
Potsdam Institute for Climate Impact Research;

/persons/resource/luis.costa

Costa,  Luís
Potsdam Institute for Climate Impact Research;

/persons/resource/garcia.cantu.ros

García Cantú Ros,  Anselmo
Potsdam Institute for Climate Impact Research;

/persons/resource/Juergen.Kropp

Kropp,  Jürgen P.
Potsdam Institute for Climate Impact Research;

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Fulltext (public)

8543oa.pdf
(Publisher version), 25MB

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Citation

Kriewald, S., Pradhan, P., Costa, L., García Cantú Ros, A., Kropp, J. P. (2019): Hungry cities: how local food self-sufficiency relates to climate change, diets, and urbanisation. - Environmental Research Letters, 14, 9, 094007.
https://doi.org/10.1088/1748-9326/ab2d56


Cite as: https://publications.pik-potsdam.de/pubman/item/item_23234
Abstract
Using a newly developed model approach and combining it with remote sensing, population, and climate data, first insights are provided into how local diets, urbanisation, and climate change relates to local urban food self-sufficiency. In plain terms, by utilizing the global peri-urban (PU) food production potential approximately 1bn urban residents (30% of global urban population) can be locally nourished, whereby further urbanisation is by far the largest pressure factor on PU agriculture, followed by a change of diets, and climate change. A simple global food transport model which optimizes transport and neglects differences in local emission intensities indicates that CO2 emissions related to food transport can be reduced by a factor of 10.