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City-Level Carbon Accounting from Urban Supply Chains and Final Consumers: challenges faced by the GHG emission inventory of Madrid-Spain.
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Autor:
Andrea Dameno Nielsen Universidad Politécnica de Madrid |
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| Otros autores: Célio Andrade (Federal University of Bahia); Javier Pérez Rodríguez (Universidad Politécnica de Madrid). | |
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Tipo:
Comunicación técnica panel |
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| Temática: Energía, eficiencia y cambio climático | |
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| Documentos asociados: Doc. Panel | |
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Resumen: |
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Making cities more sustainable is one of the most vital challenges of modern times, especially as they exert a significant impact on the environmental status quo. Therefore, a greater emphasis placed on an integrated perspective on production-consumption systems is needed in order to increase the quality of the current urban GHG inventories. City-level carbon accounting standards which enable city decision makers to clearly identify GHG emission sources and their drivers, reduce the carbon dependence of their economy, and stimulate opportunities for more efficient urban supply chains and a sustainable consumption and production system is crucial. Thus, the goal of this poster is to present the challenges faced by the production-based Greenhouse Gas (GHG) emission inventories of Madrid in order to account for the GHG emissions from their supply chains and final consumers. From the comparison between the GHG emission inventory of Madrid and the detailed case study PAS2070 GHG emission inventory of London could emerge the challenges that city decision-makers need to face in order to improve the quality of urban carbon accounting practices in Madrid by changing their focus from a current production-based GHG inventory to an integrated production-consumption carbon accounting system. As results, this poster shows that a first approach to include indirect emissions that were not included before in Madrid’s inventory doubles the total GHG emissions reported by the traditional inventory in accordance with London’s situation when comparing traditional and integrated models of GHG inventories. Furthermore, challenges have been found in Madrid in order to estimate scope 3 GHG emissions from consumed goods and services, Madrid needs more primary data and regional cradle-to-gate factors in order to accurately calculate these emissions. More importantly, London has developed a full Consumption-Based inventory helped by EEIO (environmentally extended input-output) matrixes which was impossible to compare to Madrid as the Spanish city lacks this kind of analytic tool. In conclusion, this poster gives an overview of some challenges for Madrid regarding carbon accounting future research’ focus on an integrated approach, addressing both production and consumption. |
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