24.06.2021

# New Publications

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Zickfeld, Kirsten; et al. (2021): Asymmetry in the climate–carbon cycle response to positive and negative CO2 emissions

Zickfeld, Kirsten; Azevedo, Deven; Mathesius, Sabine; Matthews, H. Damon (2021): Asymmetry in the climate–carbon cycle response to positive and negative CO2 emissions. In Nat. Clim. Chang., pp. 1–5. DOI: 10.1038/s41558-021-01061-2.

" It is commonly assumed that the climate–carbon cycle response to a negative CO2 emission is equal in magnitude and opposite in sign to the response to an equivalent positive CO2 emission. Here we test the hypothesis that this response is symmetric by forcing an Earth system model with positive and negative CO2 emission pulses of varying magnitude and applied from different climate states."

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16.06.2021

# New Publications

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Saidi, Majid; Inaloo, Ebrahim Balaghi (2021): CO2 Removal Using 1DMA2P Solvent via Membrane Technology: Rate Based Modeling and Sensitivity Analysis

Saidi, Majid; Inaloo, Ebrahim Balaghi (2021): CO2 Removal Using 1DMA2P Solvent via Membrane Technology: Rate Based Modeling and Sensitivity Analysis. In Chemical Engineering and Processing - Process Intensification, p. 108464. DOI: 10.1016/j.cep.2021.108464.

"A numerically solved reaction rate/kinetic model for CO2 removal from a CO2/N2 gas mixture into novel reactive 1-dimethylamino-2-propanol (1DMA2P) solution in a gas–liquid membrane contactor was constructed."

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14.06.2021

# New Publications

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Belmonte, Beatriz A.; et al. (2021): A fuzzy optimization model for planning integrated terrestrial carbon management networks

Belmonte, Beatriz A.; Aviso, Kathleen B.; Benjamin, Michael Francis D.; Tan, Raymond R. (2021): A fuzzy optimization model for planning integrated terrestrial carbon management networks. In Clean Techn Environ Policy, pp. 1–13. DOI: 10.1007/s10098-021-02119-7.

"Although recent papers have reported the development of process integration models for optimizing carbon management networks based on either biochar application or enhanced weathering, none have reported models integrating these two NETs in the same system. To address this gap, a fuzzy mixed-integer linear programming model is developed that integrates biochar application and enhanced weathering for large-scale carbon sequestration."

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28.04.2021

# New Publications

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Grassi, Giacomo; et al. (2021): Critical adjustment of land mitigation pathways for assessing countries’ climate progress

Grassi, Giacomo; Stehfest, Elke; Rogelj, Joeri; van Vuuren, Detlef; Cescatti, Alessandro; House, Jo et al. (2021): Critical adjustment of land mitigation pathways for assessing countries’ climate progress. In Nat. Clim. Chang. DOI: 10.1038/s41558-021-01033-6.

"Here we present a ‘Rosetta stone’ adjustment to translate IAMs’ land-use mitigation pathways to estimates more comparable with GHG inventories."

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19.04.2021

# New Publications

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Plazzotta, Maxime; et al. (2019): Impact of Solar Radiation Modification on Allowable CO 2 Emissions: What Can We Learn From Multimodel Simulations?

Plazzotta, Maxime; Séférian, Roland; Douville, Hervé (2019): Impact of Solar Radiation Modification on Allowable CO 2 Emissions: What Can We Learn From Multimodel Simulations? In Earth’s Future 7 (6), pp. 664–676. DOI: 10.1029/2019EF001165.

"Here we use the results of six Earth system models simulating a continuous stratospheric injection of 5 Tg of sulfur dioxide per year between 2020 and 2069 under the representative concentration pathways 4.5 to investigate the impact of SRM on land and ocean carbon uptake."

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11.03.2021

# New Publications

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Visioni, Daniele; et al. (2021): Identifying the sources of uncertainty in climate model simulations of solar radiation modification with the G6sulfur and G6solar Geoengineering Model Intercomparison Project (GeoMIP) simulations

Visioni, Daniele; MacMartin, Douglas G.; Kravitz, Ben; Boucher, Olivier; Jones, Andy; Lurton, Thibaut et al. (2021): Identifying the sources of uncertainty in climate model simulations of solar radiation modification with the G6sulfur and G6solar Geoengineering Model Intercomparison Project (GeoMIP) simulations. Preprint. In Atmos. Chem. Phys. DOI: 10.5194/acp-2021-133.

"We present here results from the Geoengineering Model Intercomparison Project (GeoMIP) simulations for the experiment G6sulfur and G6solar for six Earth System Models participating in the Climate Model Intercomparison Project (CMIP) Phase 6. The aim of the experiments is to reduce the warming from that resulting from a high-tier emission scenario (Shared Socioeconomic Pathways SSP5-8.5) to that resulting from a medium-tier emission scenario (SSP2-4.5)."

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09.02.2021

# Calls & events

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Job: PostDoc "Biogeochemical Earth System Modeling"

Deadline: 05. March 2021

"This position is part of the Helmholtz Young Investigator group Marine Carbon and Ecosystem Feedbacks in the Earth System (MarESys) led by Dr. Judith Hauck. MarESys aims to assess integrated effects of climate change and variability in the ocean with a focus on ocean carbon feedbacks and marine ecosystem drivers."

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08.02.2021

# New Publications

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Gettelman, A.; et al. (2021): Climate Impacts of COVID‐19 Induced Emission Changes

Gettelman, A.; Lamboll, R.; Bardeen, C. G.; Forster, P. M.; Watson‐Parris, D. (2021): Climate Impacts of COVID‐19 Induced Emission Changes. In Geophysical Research Letters 48 (3), e2020GL091805. DOI: 10.1029/2020GL091805.

"We use estimates of emission changes for 2020 in two Earth System Models (ESMs) to simulate the impacts of the COVID‐19 economic changes."

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26.01.2021

# New Publications

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Drake, Henri F.; et al. (2020): A Multi-control Climate Policy Process for a Designated Decision Maker

Drake, Henri F.; Rivest, Ronald L.; Edelman, Alan; Deutch, John (2020): A Multi-control Climate Policy Process for a Designated Decision Maker. Massachusetts Institute of Technology. Cambridge, MA (MIT CEEPR Working Paper Series).

"We present an idealized model of optimally-controlled climate change, which is complementary to simpler analytical models and more comprehensive Integrated Assessment Models. We show that the four methods of controlling climate damage– mitigation, carbon dioxide removal, adaptation, and solar radiation modification– are not interchangeable, as they enter at different stages of the causal chain that connects GHG emissions to climate damages."

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16.11.2020

# New Publications

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Randers, Jorgen; Goluke, Ulrich (2020): An earth system model shows self-sustained melting of permafrost even if all man-made GHG emissions stop in 2020

Randers, Jorgen; Goluke, Ulrich (2020): An earth system model shows self-sustained melting of permafrost even if all man-made GHG emissions stop in 2020. In Sci Rep 10 (1), pp. 1–9. DOI: 10.1038/s41598-020-75481-z.

"In this paper we report that in the ESCIMO climate model the world is already past a point-of-no-return for global warming. In ESCIMO we observe self-sustained melting of the permafrost for hundreds of years, even if global society stops all emissions of man-made GHGs immediately. We encourage other model builders to explore our discovery in their (bigger) models, and report on their findings."

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