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Urban sustainability is one of the most prominent challenges in the global agenda waiting to be addressed since the Earth Summit in Rio de Janeiro. This research work applies a composite indicator that has been developed as the Sustainable Development of Energy, Water and Environment Systems Index to benchmark the performance of a new sample of 26 world cities. The sample advances the geographical diversity of previous samples and represents cities in the Global Covenant of Mayors for Climate and Energy as well as the C40 initiative. The benchmarking results are analysed based on quartiles of city performance and Monte Carlo simulations. The results indicate the top three cities in the sample to be Copenhagen, which obtains a score of 36.038, followed by Helsinki and Gothenburg. The top cities represent multiple best practices including those in district energy networks, water quality, and environmental management. A normative scenario up to the year 2050 is then applied to one of the cities in the sample, namely Rio de Janeiro. The normative scenario involves targets that take place in local plans, particularly Vision Rio 500. The benchmarking results for the new sample of 26 world cities and the normative scenario not only identifies the benchmark leaders but also underlines opportunities to pursue pathways in which higher levels of performance can be reached by cities that may face multiple challenges. The results of the research work holds significance for advancing the application of an original composite indicator to benchmark cities towards supporting the aim of decoupling economic growth from environmental pressures in more sustainable urban systems towards carbon neutrality.

Tools that can benchmark cities, including cities in South East Europe, are necessary to enable the comparison and diffusion of more sustainable practices for urban systems. The “Sustainable Development of Energy, Water and Environment Systems Index” provides a composite indicator for benchmarking city performance based on 7 dimensions and 35 main indicators. In this research work, the Index is applied to a new sample of 18 cities in South East Europe for which data is collected, normalized, and aggregated. Klagenfurt (3.08), Velenje (3.06) and Pécs (3.01) are found to be the top three cities in the sample while an average city receives an index score of 2.85. The results are further compared to reference averages and evaluated based on the mean simulated values of 10,000 Monte Carlo experiments. The results are interpreted in quartiles for pioneering, transitioning, solution-seeking, and challenged cities. The results are then applied within a benchmarking tool of the Index that supports policy learning to trigger collaboration between cities and further used to match cities according to a search algorithm based on index performance. In addition, the results are compared to urban hierarchy as well as development contexts and mapped onto the spatial dimension as an initial step for enabling a “Sustainable Development of Energy, Water and Environment Systems Future City Network”. The paper concludes with a set of four proposed steps to enable decision-makers and urban planners in using the Sustainable Development of Energy, Water and Environment Systems Index in support of more sustainable urban systems.

Urban sustainability is one of the most prominent challenges in the global agenda waiting to be addressed since the Earth Summit in Rio de Janeiro. This research work applies a composite indicator that has been developed as the Sustainable Development of Energy, Water and Environment Systems Index to benchmark the performance of a new sample of 26 world cities. The sample advances the geographical diversity of previous samples and represents cities in the Global Covenant of Mayors for Climate and Energy as well as the C40 initiative. The benchmarking results are analysed based on quartiles of city performance and Monte Carlo simulations. The results indicate the top three cities in the sample to be Copenhagen, which obtains a score of 36.038, followed by Helsinki and Gothenburg. The top cities represent multiple best practices including those in district energy networks, water quality, and environmental management. A normative scenario up to the year 2050 is then applied to one of the cities in the sample, namely Rio de Janeiro. The normative scenario involves targets that take place in local plans, particularly Vision Rio 500. The benchmarking results for the new sample of 26 world cities and the normative scenario not only identifies the benchmark leaders but also underlines opportunities to pursue pathways in which higher levels of performance can be reached by cities that may face multiple challenges. The results of the research work holds significance for advancing the application of an original composite indicator to benchmark cities towards supporting the aim of decoupling economic growth from environmental pressures in more sustainable urban systems towards carbon neutrality. [ABSTRACT FROM AUTHOR]

Tools that can benchmark cities, including cities in South East Europe, are necessary to enable the comparison and diffusion of more sustainable practices for urban systems. The "Sustainable Development of Energy, Water and Environment Systems Index" provides a composite indicator for benchmarking city performance based on 7 dimensions and 35 main indicators. In this research work, the Index is applied to a new sample of 18 cities in South East Europe for which data is collected, normalized, and aggregated. Klagenfurt (3.08), Velenje (3.06) and Pécs (3.01) are found to be the top three cities in the sample while an average city receives an index score of 2.85. The results are further compared to reference averages and evaluated based on the mean simulated values of 10,000 Monte Carlo experiments. The results are interpreted in quartiles for pioneering, transitioning, solution-seeking, and challenged cities. The results are then applied within a benchmarking tool of the Index that supports policy learning to trigger collaboration between cities and further used to match cities according to a search algorithm based on index performance. In addition, the results are compared to urban hierarchy as well as development contexts and mapped onto the spatial dimension as an initial step for enabling a "Sustainable Development of Energy, Water and Environment Systems Future City Network". The paper concludes with a set of four proposed steps to enable decision-makers and urban planners in using the Sustainable Development of Energy, Water and Environment Systems Index in support of more sustainable urban systems. [ABSTRACT FROM AUTHOR]