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Journal Article

Cities as nuclei of sustainability?

Authors
/persons/resource/Diego.Rybski

Rybski,  Diego
Potsdam Institute for Climate Impact Research;

/persons/resource/dominik.reusser

Reusser,  Dominik E.
Potsdam Institute for Climate Impact Research;

/persons/resource/anna-lena.winz

Winz,  Anna-Lena
Potsdam Institute for Climate Impact Research;

/persons/resource/christina.fichtner

Fichtner,  Christina
Potsdam Institute for Climate Impact Research;

/persons/resource/till.sterzel

Sterzel,  Till
Potsdam Institute for Climate Impact Research;

/persons/resource/Juergen.Kropp

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

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Citation

Rybski, D., Reusser, D. E., Winz, A.-L., Fichtner, C., Sterzel, T., Kropp, J. P. (2017): Cities as nuclei of sustainability? - Environment and Planning B: Urban Analytics and City Science, 44, 3, 425-440.
https://doi.org/10.1177/0265813516638340


Cite as: https://publications.pik-potsdam.de/pubman/item/item_20778
Abstract
We have assembled CO2 emission figures from collections of urban GHG emission estimates published in peer-reviewed journals or reports from research institutes and non-governmental organizations. Analyzing the scaling with population size, we find that the exponent is development dependent with a transition from super- to sub-linear scaling. From the climate change mitigation point of view, the results suggest that urbanization is desirable in developed countries. Further, we compare this analysis with a second scaling relation, namely the fundamental allometry between city population and area, and propose that density might be a decisive quantity too. Last, we derive the theoretical country-wide urban emissions by integration and obtain a dependence on the size of the largest city.