24.08.2020

# New Publications

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Daniel Bodansky; Hugh Hunt (2020): Arctic Climate Interventions

Daniel Bodansky; Hugh Hunt (2020): Arctic Climate Interventions. In The International Journal of Marine and Coastal Law 35 (3), pp. 596–617. DOI: 10.1163/15718085-BJA10035.

"Even if one believes that global climate interventions, such as injecting aerosols into the stratosphere to scatter sunlight, pose unacceptable risks and should be disqualified from consideration, Arctic interventions differ in important respects. They are closer in kind to conventional mitigation and adaptation and should be evaluated in similar terms. It is unclear whether they are feasible and would be effective in saving the Arctic. But given the importance of the Arctic, they should be investigated fully."

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18.05.2020

# New Publications

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Chen, Yating; et al. 2020: “Mitigation of Arctic Permafrost Carbon Loss through Stratospheric Aerosol Geoengineering.”

Chen, Yating, Aobo Liu, and John C. Moore. 2020: “Mitigation of Arctic Permafrost Carbon Loss through Stratospheric Aerosol Geoengineering.” Nature Communications 11 (1). https://doi.org/10.1038/s41467-020-16357-8.

‌"Increasing Earth’s albedo by the injection of sulfate aerosols into the stratosphere has been proposed as a way of offsetting some of the adverse effects of climate change. We examine this hypothesis in respect of permafrost carbon-climate feedbacks using the PInc-PanTher process model driven by seven earth system models running the Geoengineering Model Intercomparison Project (GeoMIP) G4 stratospheric aerosol injection scheme to reduce radiative forcing under the Representative Concentration Pathway (RCP) 4.5 scenario."

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10.02.2020

# Media

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Irish Times: How to get the carbon dioxide we shoved into the atmosphere back out again

"Environmentalists get nervous when they hear people talking about reducing carbon-induced global warming through “geoengineering”, the use of technology to intervene directly in the Earth’s systems to reduce the impact of climate change."

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29.01.2020

# New Publications

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Macias-Fauria, Marc; et al. (2020): Pleistocene Arctic megafaunal ecological engineering as a natural climate solution?

Macias-Fauria, Marc; Jepson, Paul; Zimov, Nikita; Malhi, Yadvinder (2020): Pleistocene Arctic megafaunal ecological engineering as a natural climate solution? In Philosophical transactions of the Royal Society of London. Series B, Biological sciences 375 (1794), p. 20190122. DOI: 10.1098/rstb.2019.0122.

"Here we review the environmental context of megafaunal ecological engineering in the Arctic; explore the mechanisms through which it can help mitigate climate change; and estimate its potential—based on bison and horse, with the aim of evaluating the feasibility of generating an ecosystem shift that is economically viable in terms of carbon benefits and of sufficient scale to play a significant role in global climate change mitigation."

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16.12.2019

# Media

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New York Times: Our Future Depends on the Arctic

"The race to maintain the Arctic's stabilizing role in the global climate means, in addition, that we need to put geoengineering into the policy mix, despite its hazards, moral or otherwise. This should start with "soft" geoengineering that can be carefully monitored as it is scaling up, and reversed if side effects become too troubling."

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09.12.2019

# Media

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Braunschweiger Zeitung: Study: Technical interventions in the Arctic won't stop climate change

German newspaper article about the results of the Arctic CE study conducted by the Alfred Wegener Institute.

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09.12.2019

# New Publications

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Zampieri, L.; et al. (2019): Sea Ice Targeted Geoengineering Can Delay Arctic Sea Ice Decline but not Global Warming

Zampieri, Lorenzo; Goessling, Helge F. (2019): Sea Ice Targeted Geoengineering Can Delay Arctic Sea Ice Decline but not Global Warming. In Earth's Future 7. DOI: 10.1029/2019EF001230.

"To counteract global warming, a geoengineering approach that aims at intervening in the Arctic ice‐albedo feedback has been proposed. A large number of wind‐driven pumps shall spread seawater on the surface in winter to enhance ice growth, allowing more ice to survive the summer melt. We test this idea with a coupled climate model by modifying the surface exchange processes such that the physical effect of the pumps is simulated."

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25.10.2019

# Media

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Wired: Can Tiny Glass Beads Keep Arctic Ice From Melting? Maaaybe

"A geoengineering nonprofit wants to spread silicate beads over polar sea ice to prevent the absorption of heat, but some scientists have their doubts."

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09.10.2019

# Political Papers

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C2G: Policy Brief: Climate-Altering Technologies and the Arctic. Carnegie Climate Governance Initiative

‘C2G (2019). C2G Policy Brief: Climate-Altering Technologies and the Arctic. Carnegie Climate Governance Initiative (C2G). New York. 2019’ Version 20191004

"In response to the risks posed by climate change, some are considering the viability of developing and deploying climate-altering technologies in the Arctic such as Solar Radiation Modification (SRM) and large-scale Carbon Dioxide Removal (CDR)."

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08.10.2019

# Calls & events

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C2G: Arctic Circle Assembly

10. October 2019, Reykjavík / Iceland

"The Arctic plays a key role in the global climate system. This makes the region an area of special interest for those considering the viability of climate-altering technologies, including Solar Radiation Modification and large-scale Carbon Dioxide Removal. In addition, others are considering interventions to engineer or protect ice in order to slow or reverse ice melt. But is there adequate governance in place to protect people and ecosystems should these climate-altering technologies be tested or used?"

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