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The achievement of global sustainable development goals subject to planetary boundaries will mostly be determined by cities as they drive cultures, economies, material use, and waste generation. Locally relevant, applied and quantitative methodologies are critical to capture the complexity of urban infrastructure systems, global inter-connections, and to monitor local and global progress toward sustainability...
This forum article explores thermodynamic understanding of the growth of cities, including theoretical foundations, observations, and analysis. The general theory of nonequilibrium thermodynamics is reviewed, recognizing differences in interpretation between Prigogine and Schneider and Kay as well as discussing the hypothesis of maximum entropy production. Calculations of exergy gradients in a few...
The study asks how well are cities doing in reducing their greenhouse gas emissions. Data from six cities with repeat GHG emission inventories for the period 2004–2009 is examined: Berlin, Boston, Greater Toronto, London, New York City and Seattle. All of the cities are reducing their per capita GHG emissions, primarily through changes to stationary combustion. On average the cities are reducing per...
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