Preprints
https://doi.org/10.5194/egusphere-2023-3035
https://doi.org/10.5194/egusphere-2023-3035
20 Mar 2024
 | 20 Mar 2024
Status: this preprint is open for discussion.

MESSAGEix-Materials v1.0.0: Representation of Material Flows and Stocks in an Integrated Assessment Model

Gamze Ünlü, Florian Maczek, Jihoon Min, Stefan Frank, Fridolin Glatter, Paul Natsuo Kishimoto, Jan Streeck, Nina Eisenmenger, Volker Krey, and Dominik Wiedenhofer

Abstract. Extracting and processing raw materials into products in industry is a substantial source of CO2 emissions, which currently lacks process detail in many integrated assessment models (IAMs). To broaden the space of climate change mitigation options and to include circular economy and material efficiency measures in IAM scenario analysis, we developed MESSAGEix-Materials module representing material flows and stocks within the MESSAGEix-GLOBIOM IAM framework. With the development of MESSAGEix-Materials, we provide a fully open-source model that can assess different industry decarbonization options under various climate targets for the most energy and emissions-intensive industries: Aluminium, iron and steel, cement, and petrochemicals. We illustrate the model’s operation with a baseline and mitigation (2 degrees) scenario setup and validate base year results for 2020 against historical datasets. We also discuss the industry decarbonization pathways and material stocks of the electricity generation technologies resulting from the new model features.

Gamze Ünlü, Florian Maczek, Jihoon Min, Stefan Frank, Fridolin Glatter, Paul Natsuo Kishimoto, Jan Streeck, Nina Eisenmenger, Volker Krey, and Dominik Wiedenhofer

Status: open (until 15 May 2024)

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Gamze Ünlü, Florian Maczek, Jihoon Min, Stefan Frank, Fridolin Glatter, Paul Natsuo Kishimoto, Jan Streeck, Nina Eisenmenger, Volker Krey, and Dominik Wiedenhofer
Gamze Ünlü, Florian Maczek, Jihoon Min, Stefan Frank, Fridolin Glatter, Paul Natsuo Kishimoto, Jan Streeck, Nina Eisenmenger, Volker Krey, and Dominik Wiedenhofer

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Short summary
Extraction and processing of raw materials is a significant source of CO2 emissions in industry and therefore contributor to climate change. We develop an open-source tool to assess different industry decarbonization pathways in Integrated Assessment Models (IAM) with a representation of material flows and stocks.Our research highlights the importance of expanding the scope of climate change mitigation options to include circular economy and material efficiency measures in IAM scenario analysis.