Abstract:SummaryEnvironmentally extended multiregion input-output (EEMRIO) databases are used to quantify numerous environmental pressures and impacts from a consumption perspective. However, for targeted communication with decision makers, large sets of impact indicators are unfavorable. Small sets of headline indicators have been proposed to guide environmental policy, but these may not cover all relevant aspects of environmental impact. The aim of our study was to evaluate the extent to which a set of four headline … Show more
“…Any conclusion drawn regarding these six impact categories, in this study or in any study that undertakes a similar approach of impact assessment (e.g. Steinmann et al., 2018), should be considered keeping in mind the potential uncertainty encompassed in impact assessment results.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, up to now, existing studies have primarily limited their analysis to a reduced set of flows, in most cases without any quantification of the corresponding impacts these flows induce on the environment. Only recently, Steinmann et al. (2018) have used EXIOBASE 3 to quantify the potential impacts generated by the pressures (that is, by the flows) induced by consumption, and subsequently to identify a limited set of environmental indicators that explain most of the variance of the total impacts embedded in EXIOBASE 3.…”
Sustainable Consumption and Production is one of the leading principle towards reducing environmental impacts globally. This study aims at combining Environmentally-Extended Input-Output Analysis (using EXIOBASE 3) with up-to-date impact assessment models to quantify the environmental impacts induced by final consumption in the EU Member States in 2011. The environmental extensions are characterized in 14 environmental impact categories out of the 16 used in the Environmental Footprint life cycle impact assessment method. A contribution analysis of key products and services as well as emissions and resources, which drive the environmental impacts of EU consumption, is conducted. Environmental impacts are mainly induced along the supply-chain of products and services. Several expenditures relative to services represent large shares both in the total final consumption and in the 14 impacts under study, despite a relatively low impact intensity. Food products, in particular meat and dairy products, are identified as key contributors regarding acidification, eutrophication, land use, and water use, and to a lower extent climate change. Finally, several manufactured products, raw materials and basic products respectively importantly contribute to impacts on human toxicity, freshwater ecotoxicity and resource uses. The total volume of final consumption expenditures per EU Member State appears a key explanatory variable to most of the impacts embodied in their consumption, yet to a lower extent regarding water use and fossils resource use. Finally, the current limitations in using EXIOBASE 3 for environmental impact assessment are discussed, with specific attention to EXIOBASE environmental extensions and to the case study on EU consumption. Since the classification of emissions and resources for impact assessment requires a number of assumptions that may influence the results, a sensitivity analysis is performed to exemplify some of the key issues relative to the characterization of impacts based on EXIOBASE environmental extensions.
“…Any conclusion drawn regarding these six impact categories, in this study or in any study that undertakes a similar approach of impact assessment (e.g. Steinmann et al., 2018), should be considered keeping in mind the potential uncertainty encompassed in impact assessment results.…”
Section: Discussionmentioning
confidence: 99%
“…Therefore, up to now, existing studies have primarily limited their analysis to a reduced set of flows, in most cases without any quantification of the corresponding impacts these flows induce on the environment. Only recently, Steinmann et al. (2018) have used EXIOBASE 3 to quantify the potential impacts generated by the pressures (that is, by the flows) induced by consumption, and subsequently to identify a limited set of environmental indicators that explain most of the variance of the total impacts embedded in EXIOBASE 3.…”
Sustainable Consumption and Production is one of the leading principle towards reducing environmental impacts globally. This study aims at combining Environmentally-Extended Input-Output Analysis (using EXIOBASE 3) with up-to-date impact assessment models to quantify the environmental impacts induced by final consumption in the EU Member States in 2011. The environmental extensions are characterized in 14 environmental impact categories out of the 16 used in the Environmental Footprint life cycle impact assessment method. A contribution analysis of key products and services as well as emissions and resources, which drive the environmental impacts of EU consumption, is conducted. Environmental impacts are mainly induced along the supply-chain of products and services. Several expenditures relative to services represent large shares both in the total final consumption and in the 14 impacts under study, despite a relatively low impact intensity. Food products, in particular meat and dairy products, are identified as key contributors regarding acidification, eutrophication, land use, and water use, and to a lower extent climate change. Finally, several manufactured products, raw materials and basic products respectively importantly contribute to impacts on human toxicity, freshwater ecotoxicity and resource uses. The total volume of final consumption expenditures per EU Member State appears a key explanatory variable to most of the impacts embodied in their consumption, yet to a lower extent regarding water use and fossils resource use. Finally, the current limitations in using EXIOBASE 3 for environmental impact assessment are discussed, with specific attention to EXIOBASE environmental extensions and to the case study on EU consumption. Since the classification of emissions and resources for impact assessment requires a number of assumptions that may influence the results, a sensitivity analysis is performed to exemplify some of the key issues relative to the characterization of impacts based on EXIOBASE environmental extensions.
“…In essence, they use all kinds of databases providing physical information on material flows (e.g., IEA, FAO, Eurostat production statistics, waste statistics, and physical trade data), estimated price data, in combination with the economic MRIO and physical mass balance constraints, to estimate the physical complement of the economic GMRIO EXIOBASE. This allowed further to enrich EXIOBASE with data on waste treatment. Ability to focus on a range of footprint indicators : The paper of Steinmann and colleagues () discusses, using methods such as correlation analysis and principal component analysis, how a minimum set of representative indicators can be chosen from over 100 that can be calculated with EXIOBASE using impact assessment methods such as Ecoindicator 99, ReCiPe, etc. The study of Steinmann and colleagues shows that just using the pressure indicators of carbon/energy, land, water, and materials, that is, the indicators proposed in the resource‐efficiency roadmap of the EC (), have a limited representation, explaining about 60% of the overall environmental variance.…”
Section: Approaches Based On Global Multiregional Input‐output Analysismentioning
Summary
This paper serves as an introduction to this special issue on the use of multiregional input‐output modeling in assessments of natural resource use and resource use efficiency. Due to globalization, growth in trade has outpaced growth in global gross domestic product (GDP). As a consequence, impacts of consumption of a country increasingly take place abroad. Various methods have been developed to perform so‐called footprint analyses. We argue that global multiregional input‐output (GMRIO) analysis has the largest potential to provide a consistent accounting framework to calculate a variety of different footprint indicators. The state of the art in GMRIO has, however, various shortcomings, such as limited sector and regional detail and incomplete extensions. The work presented in this special issue addresses a number of such problems and how to possibly overcome them, focusing on the construction of a new GMRIO database (EXIOBASE V3). This database includes long time series in both current and constant prices, a high level of product and sector detail, a physical representation of the world economy, and allows analyzing which footprints out of the many possible indicators provide most information for policy making. Various options for empirical analyses are presented in this special issue. Finally, we analyze how GMRIOs can be further standardized and gradually moved from the scientific to the official statistical domain.
“…Wood and colleagues () apply the new EXIOBASE 3 database to investigate the growth in environmental pressures in various countries in a time series from 1995 to 2011, discussing the role of international trade in contributing to environmental leakage. The contribution by Steinmann and colleagues () turns to the issue of policy relevance of indicator sets on resource use and resource efficiency. They find that carbon, land, water, and material footprints cover almost 60% of the variance in product rankings among environmental indicators and that extension by five impact‐oriented indicators increases the coverage to 95%.…”
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