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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.gloenvcha.2018.07.003
|2 doi
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|a pubmed25n0976.xml
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Krausmann, Fridolin
|e verfasserin
|4 aut
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|a From resource extraction to outflows of wastes and emissions
|b The socioeconomic metabolism of the global economy, 1900-2015
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 25.02.2020
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The size and structure of the socioeconomic metabolism are key for the planet's sustainability. In this article, we provide a consistent assessment of the development of material flows through the global economy in the period 1900-2015 using material flow accounting in combination with results from dynamic stock-flow modelling. Based on this approach, we can trace materials from extraction to their use, their accumulation in in-use stocks and finally to outflows of wastes and emissions and provide a comprehensive picture of the evolution of societies metabolism during global industrialization. This enables outlooks on inflows and outflows, which environmental policy makers require for pursuing strategies towards a more sustainable resource use. Over the whole time period, we observe a growth in global material extraction by a factor of 12 to 89 Gt/yr. A shift from materials for dissipative use to stock building materials resulted in a massive increase of in-use stocks of materials to 961 Gt in 2015. Since materials increasingly accumulate in stocks, outflows of wastes are growing at a slower pace than inputs. In 2015, outflows amounted to 58 Gt/yr, of which 35% were solid wastes and 25% emissions, the reminder being excrements, dissipative use and water vapor. Our results indicate a significant acceleration of global material flows since the beginning of the 21st century. We show that this acceleration, which took off in 2002, was not a short-term phenomenon but continues since more than a decade. Between 2002 and 2015, global material extraction increased by 53% in spite of the 2008 economic crisis. Based on detailed data on material stocks and flows and information on their long-term historic development, we make a rough estimate of what a global convergence of metabolic patterns at the current level in industrialized countries paired with a continuation of past efficiency gains might imply for global material demand. We find that in such a scenario until 2050 average global metabolic rates double to 22 t/cap/yr and material extraction increases to around 218 Gt/yr. Overall the analysis indicates a grand challenge calling for urgent action, fostering a continuous and considerable reduction of material flows to acceptable levels
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|a Journal Article
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|a Dematerialization
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|a Great acceleration
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|a In-use material stocks
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|a Material flow accounting
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|a Sustainable resource use
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|a Waste and emissions
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|a Lauk, Christian
|e verfasserin
|4 aut
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|a Haas, Willi
|e verfasserin
|4 aut
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|a Wiedenhofer, Dominik
|e verfasserin
|4 aut
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|i Enthalten in
|t Global environmental change : human and policy dimensions
|d 1995
|g 52(2018) vom: 16. Sept., Seite 131-140
|w (DE-627)NLM09820260X
|x 0959-3780
|7 nnns
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|g volume:52
|g year:2018
|g day:16
|g month:09
|g pages:131-140
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|u http://dx.doi.org/10.1016/j.gloenvcha.2018.07.003
|3 Volltext
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