07.09.2020

# New Publications

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Visioni, Daniele; et al. (2020): Reduced Poleward Transport Due to Stratospheric Heating Under Stratospheric Aerosols Geoengineering

Visioni, Daniele; MacMartin, Douglas G.; Kravitz, Ben; Lee, Walker; Simpson, Isla R.; Richter, Jadwiga H. (2020): Reduced Poleward Transport Due to Stratospheric Heating Under Stratospheric Aerosols Geoengineering. In Geophysical Research Letters 47 (17). DOI: 10.1029/2020GL089470.

"We show how the heating results in a feedback where increasing injection rates lead to stronger high‐latitudinal transport barriers. This implies a potential limitation in the high‐latitude aerosol burden and subsequent cooling."

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07.09.2020

# New Publications

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Kravitz, Ben; et al. (2020): Comparing different generations of idealized solar geoengineering simulations in the Geoengineering Model Intercomparison Project (GeoMIP)

Kravitz, Ben; MacMartin, Douglas G.; Visioni, Daniele; Boucher, Olivier; Cole, Jason N. S.; Haywood, Jim et al. (2020): Comparing different generations of idealized solar geoengineering simulations in the Geoengineering Model Intercomparison Project (GeoMIP). In Atmospheric Chemistry and Physics (under review). DOI: 10.5194/acp-2020-732.

"Two generations of models in the Geoengineering Model Intercomparison Project (GeoMIP) have now simulated offsetting a quadrupling of the CO2 concentration with solar reduction. This simulation is artificial and designed to elicit large responses in the models. Here we show that energetics, temperature, and hydrological cycle changes in this experiment are statistically indistinguishable between the two ensembles."

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07.09.2020

# New Publications

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Keen, Steve (2020): The appallingly bad neoclassical economics of climate change

Keen, Steve (2020): The appallingly bad neoclassical economics of climate change. In Globalizations, pp. 1–29. DOI: 10.1080/14747731.2020.1807856.

"Forecasts by economists of the economic damage from climate change have been notably sanguine, compared to warnings by scientists about damage to the biosphere."

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07.09.2020

# New Publications

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Dooley, Kate; et al. (2020): Carbon‐dioxide Removal and Biodiversity: A Threat Identification Framework

Dooley, Kate; Harrould‐Kolieb, Ellycia; Talberg, Anita (2020): Carbon‐dioxide Removal and Biodiversity: A Threat Identification Framework. In Global Policy. DOI: 10.1111/1758-5899.12828.

"We present a framework for assessing the impacts (positive or negative) on biodiversity and ecosystems from a spectrum of CDR interventions, so as to prioritize research to those CDR options that present minimal threats to biodiversity. Application of the framework indicates that while many CDR interventions present threats to biodiversity, certain options, such as regenerative CDR, may have positive impacts."

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06.09.2020

# New Publications

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Shi, Xiaoyang; et al. (2020): Moisture-Driven CO2 Sorbents

Shi, Xiaoyang; Xiao, Hang; Kanamori, Kohei; Yonezu, Akio; Lackner, Klaus S.; Chen, Xi (2020): Moisture-Driven CO2 Sorbents. In Joule 4 (8), pp. 1823–1837. DOI: 10.1016/j.joule.2020.07.005.

"An energy-saving system containing ion-exchange or nanoporous materials and carbonate ions is proposed, which is capable of capturing CO 2 from ambient air simply by controlling the amount of water (moisture) in contact with the sorbent."

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06.09.2020

# New Publications

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Kelemen, Peter B.; et al. (2020): Engineered carbon mineralization in ultramafic rocks for CO2 removal from air: Review and new insights

Kelemen, Peter B.; McQueen, Noah; Wilcox, Jennifer; Renforth, Phil; Dipple, Greg; Vankeuren, Amelia Paukert (2020): Engineered carbon mineralization in ultramafic rocks for CO2 removal from air: Review and new insights. In Chemical Geology 550, p. 119628. DOI: 10.1016/j.chemgeo.2020.119628.

"Carbon Dioxide removal from air (CDR) combined with permanent solid storage can be accomplished via carbon mineralization in ultramafic rocks in at least four ways."

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01.09.2020

# New Publications

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Horton, Joshua B.; Koremenos, Barbara (2020): Steering and Influence in Transnational Climate Governance: Nonstate Engagement in Solar Geoengineering Research

Horton, Joshua B.; Koremenos, Barbara (2020): Steering and Influence in Transnational Climate Governance: Nonstate Engagement in Solar Geoengineering Research. In Global Environmental Politics 20 (3), pp. 93–111. DOI: 10.1162/glep_a_00572.

"Theorists of transnational climate governance (TCG) seek to account for the increasing involvement of nonstate and substate actors in global climate policy. While transnational actors have been present in the emerging field of solar geoengineering—a novel technology intended to reflect a fraction of sunlight back to space to reduce climate impacts—many of their most significant activities, including knowledge dissemination, scientific capacity building, and conventional lobbying, are not captured by the TCG framework."

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01.09.2020

# New Publications

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Parson, Edward A.; Buck, Holly J. (2020): Large-Scale Carbon Dioxide Removal: The Problem of Phasedown

Parson, Edward A.; Buck, Holly J. (2020): Large-Scale Carbon Dioxide Removal: The Problem of Phasedown. In Global Environmental Politics 20 (3), pp. 70–92. DOI: 10.1162/glep_a_00575.

"The future phasedown need implies suggestive guidance for near-term decisions about removal methods and design of associated policy and business environments. First, variation among methods’ scale constraints and cost structures suggests a rough ordering of methods by severity of future phasedown challenges. Second, of the three potential means to motivate removals—profitable products incorporating removed carbon, extended emissions-pricing policies, or public procurement contracts—public procurement appears to present the fewest roadblocks to future phasedown."

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01.09.2020

# New Publications

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Hasegawa, Tomoko; et al. (2020): Food security under high bioenergy demand toward long-term climate goals

Hasegawa, Tomoko; Sands, Ronald D.; Brunelle, Thierry; Cui, Yiyun; Frank, Stefan; Fujimori, Shinichiro; Popp, Alexander (2020): Food security under high bioenergy demand toward long-term climate goals. In Climatic Change. DOI: 10.1007/s10584-020-02838-8.

"Using a multi-model framework, we assess the effects of high bioenergy demand on global food production, food security, and competition for agricultural land."

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28.08.2020

# New Publications

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Carton, Wim; et al. (2020): Negative emissions and the long history of carbon removal

Carton, Wim; Asiyanbi, Adeniyi; Beck, Silke; Buck, Holly J.; Lund, Jens F. (2020): Negative emissions and the long history of carbon removal. In Wiley Interdisciplinary Reviews-Climate Change. DOI: 10.1002/wcc.671.

"In this article, we survey this “long history” of carbon removal and seek to draw out lessons for ongoing research and the emerging public debate on negative emissions. We argue that research and policy on negative emissions should proceed not just from projections of the future, but also from an acknowledgement of past controversies, successes and failures."

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