| Title | Evaluating the carbon footprint of a Spanish city through environmentally extended input output analysis and comparison with life cycle assessment |
|---|---|
| ID_Doc | 69320 |
| Authors | Rama, M; Entrena-Barbero, E; Dias, AC; Moreira, MT; Feijoo, G; González-García, S |
| Title | Evaluating the carbon footprint of a Spanish city through environmentally extended input output analysis and comparison with life cycle assessment |
| Year | 2021 |
| Published | |
| Abstract | Currently, most of the greenhouse gas (GHG) emissions are attributed to cities, as they are the global centers of business, residential and cultural activity, cities are expected to play a leading role in proposing climate change mitigation actions. To do so, it is important to have tools that allow the carbon footprint of cities to be assessed as accurately as possible. This study aims to quantify the carbon footprint (CF) associated with the activities developed in a Spanish city (Cadiz, Southwest Spain) by means of two available environmental methodologies, namely Environmentally Extended Input-Output Analysis (EEIOA) and Life Cycle assessment (LCA). When EEIOA is considered, two downscaling factors were proposed for the analysis due to the nature of the data handled (monetary data), based on the incomes (DF1) and expenditures (DF2) per inhabitant at city level. Regarding LCA, the rates of consumption of goods and production of waste per inhabitant have been processed to estimate the CF. The CF scores identified were 5.25 and 3.83 tCO(2)-eq.inhabitant(-1).year(-1) for DF1 and DF2 respectively, according to EEIOA, and 5.43 tCO(2)-eq.inhabitant(-1).year(-1), considering LCA. Therefore, a similarity can be concluded between the results obtained with both methodologies despite the inherent differences. Considering the results, the downscaling procedure based on income per inhabitant should be preferred, pointing to EEIOA as a good alternative to LCA for evaluating the CF at city level, requiring less time and effort. In contrast, EEIOA reports more limitations when critical flows were identified, which LCA can solve. Finally, this study can be of great interest to policy makers and city governments to know the CF and the main flows that contribute and in this way, can develop new policies and city models for reducing GHG emission new policies and city models for reducing GHG emission and addressing climate change. (C) 2020 Elsevier B.V. All rights resented. |
| https://ria.ua.pt/bitstream/10773/37173/1/Evaluating%20the%20carbon%20footprint%20of%20a%20Spanish%20City.pdf |
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