04.10.2021

# Media

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Video: Centering Equity and Justice Within Climate Restoration

"This fireside chat will discuss the importance of incorporating equity and environmental justice into the work of carbon removal while establishing pathways to do so."

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20.09.2021

# New Publications

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Heyen, Daniel; Lehtomaa, Jere (2021): Solar Geoengineering Governance: A Dynamic Framework of Farsighted Coalition Formation

Heyen, Daniel; Lehtomaa, Jere (2021): Solar Geoengineering Governance: A Dynamic Framework of Farsighted Coalition Formation. In Oxford Open Climate Change. DOI: 10.1093/oxfclm/kgab010.

"Climate interventions with solar geoengineering could reduce climate damages if deployed in a globally coordinated regime. In the absence of such a regime, however, strategic incentives of single actors might result in detrimental outcomes. A well-known concern is that a "free-driver" (Weitzman 2015), the country with the strongest preference for cooling, might unilaterally set the global thermostat to its preferred level, thus imposing damages on others. Governance structures, i.e. more or less formal institutional arrangements between countries, could steer the decentralized geoengineering deployment towards the preferable global outcome. In this paper, we show that the coalition formation literature (an excellent summary is Ray & Vohra 2015) can make a valuable contribution to assessing the relative merit of different governance schemes."

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09.08.2021

# New Publications

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Lee, Kaylin Soo Bin; et al. (2021): Fair distributions of carbon dioxide removal obligations and implications for effective national net-zero targets

Lee, Kaylin Soo Bin; Fyson, Claire; Schleussner, Carl-Friedrich (2021): Fair distributions of carbon dioxide removal obligations and implications for effective national net-zero targets. In Environ. Res. Lett. DOI: 10.1088/1748-9326/ac1970.

"Here we show that, depending on the normative assumptions underlying a CDR burden-sharing system, the adjusted net-zero date for big emitting countries could shift forward by up to 15 years (EU, based on per capita GDP) to 35 years (Russia, based on cumulative per capita emissions) compared with what is modeled domestically in global least-cost scenarios."

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28.06.2021

# Media

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Progressive International: Holly Jean Buck: How to Decolonize the Atmosphere

"Carbon removal discussions often start with a bunch of mind-bending numbers: Curbing warming to 1.5°C relies upon removing 100–1000 billion tons (or gigatons, Gt) from the atmosphere over the course of this century, according to the Intergovernmental Panel on Climate Change."

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31.05.2021

# Political Papers

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Grisé, Michelle; et al. (2021): Climate Control: International Legal Mechanisms for Managing the Geopolitical Risks of Geoengineering

Grisé, Michelle; Yonekura, Emmi; Blake, Jonathan S.; Desmet, David; Garg, Anusree; Preston, Benjamin Lee (2021): Climate Control: International Legal Mechanisms for Managing the Geopolitical Risks of Geoengineering. RAND Corporation.

"In this Perspective, the authors review the state of different geoengineering technologies, highlighting differences in technological development stage, price, time scales, and potential secondary effects. They discuss the geopolitical risks that may be introduced by geoengineering implementation. Given the many serious risks that geoengineering poses, they conclude by examining whether existing international governance mechanisms manage the geopolitical risks associated with geoengineering."

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03.05.2021

# New Publications

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Corry, Olaf; Kornbech, Nikolaj (2021): Geoengineering: A New Arena of International Politics

Corry, Olaf; Kornbech, Nikolaj (2021): Geoengineering: A New Arena of International Politics. In David Chandler, Franziska Müller, Delf Rothe (Eds.): International relations in the anthropocene. New agendas, new agencies and new approaches. Basingstoke: Palgrave Macmillan, pp. 95–112.

"This chapter introduces geoengineering as a new arena of international politics and explains why hopeful technical explorations of alternative climate strategies have not properly factored in the international."

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03.08.2020

# New Publications

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Bas, Muhammet A.; Mahajan, Aseem (2020): Contesting the climate

Bas, Muhammet A.; Mahajan, Aseem (2020): Contesting the climate. In Climatic Change. DOI: 10.1007/s10584-020-02758-7.

"We find that when countries’ temperature preferences diverge, applications of geoengineering and countergeoengineering can be highly wasteful due to deployment in opposite directions."

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09.02.2020

# New Publications

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Lovenduski, N. S.; et al. (2020): The Potential Impact of Nuclear Conflict on Ocean Acidification

Lovenduski, Nicole S., Cheryl S. Harrison, Holly Olivarez, Charles G. Bardeen, Owen B. Toon, Joshua Coupe, Alan Robock, Tyler Rohr, and Samantha Stevenson (2020): The Potential Impact of Nuclear Conflict on Ocean Acidification. Geophysical Research Letters 47 (3). https://doi.org/10.1029/2019gl086246.

"We demonstrate that the global cooling resulting from a range of nuclear conflict scenarios would temporarily increase the pH in the surface ocean by up to 0.06 units over a 5‐year period, briefly alleviating the decline in pH associated with ocean acidification."

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29.10.2018

# Media

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Samoaobserver: Climate Engineering and game changers for international climate policy

"In his response to my opinion piece “Climate engineering is the potential game changer we need to confront” published on October 18, 2018, posted online, October 23, 2018, Fiu Mataese invites me to “agree to disagree” on our views on geoengineering."

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07.12.2017

# New Publications

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Nicholson, Simon; et al. (2017): Solar radiation management. A proposal for immediate polycentric governance

Nicholson, Simon; Jinnah, Sikina; Gillespie, Alexander (2017): Solar radiation management. A proposal for immediate polycentric governance. In Climate Policy 21 (1), pp. 1–13. DOI: 10.1080/14693062.2017.1400944.

"Specifically, we build from existing literature to argue that SRM governance must simultaneously: guard against the risks of uncontrolled SRM development; enable potentially valuable research; build legitimacy for research and any future policy through broad public engagement and ensure that SRM is only considered as one part of a broader mitigation agenda. We propose three interventions to work towards those objectives in the near term by: developing a transparency mechanism for research; creating a global forum for public engagement and including consideration of SRM in the global stocktake under the Paris Agreement."

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