24.05.2021

# Calls & events

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PhD Opportunity: PhD Studentship in Marine Cloud Brightening (University of Cambridge)

Deadline: 16. June 2021

"This PhD position will examine the effectiveness of MCB and might include - for example - development of effective spray nozzles for the formation of droplets at the right size; the modelling of climate impacts of MCB; ethics and governance issues of MCB research and outdoor experiments; impacts of MCB on local communities; and design of spray systems for large-scale deployment of MCB."

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26.04.2021

# New Publications

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Dipu, Sudhakar; et al. (2021): Substantial Climate Response outside the Target Area in an Idealized Experiment of Regional Radiation Management

Dipu, Sudhakar; Quaas, Johannes; Quaas, Martin; Rickels, Wilfried; Mülmenstädt, Johannes; Boucher, Olivier (2021): Substantial Climate Response outside the Target Area in an Idealized Experiment of Regional Radiation Management. In Climate 9 (4), p. 66. DOI: 10.3390/cli9040066.

"In this study, we used a coupled climate model (MPI-ESM) with a very idealized setup to investigate the efficacy and risks of CE at a local scale in space and time (regional radiation management, RRM) assuming that cloud modification is technically possible. RM is implemented in the climate model by the brightening of low-level clouds (solar radiation management, SRM) and thinning of cirrus (terrestrial radiation management, TRM)."

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22.03.2021

# Political Papers

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C2G Policy Brief (2021): Climate-Altering Approaches and the Arctic

C2G Policy Brief (2021): Climate-Altering Approaches  and the Arctic. 17th March 2021 - 2nd Edition.

"The Arctic plays a key role in the global climate system. Current commitments made under the 2015 Paris Agreement on climate change are insufficient to keep global warming to ‘well below’ 2°C, and according to the Intergovernmental Panel on Climate Change (IPCC), much greater ambition is necessary."

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12.03.2021

# New Publications

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Lee, Hanna; et al. (2021): The response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering

Lee, Hanna; Muri, Helene; Ekici, Altug; Tjiputra, Jerry; Schwinger, Jörg (2021): The response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering. In Earth Syst. Dynam. 12 (1), pp. 313–326. DOI: 10.5194/esd-12-313-2021.

"Here we assess the changes in ecosystem carbon exchange and storage among different terrestrial biomes under three aerosol-based radiation management methods with the baseline of RCP8.5 using an Earth system model (NorESM1-ME)."

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10.02.2021

# New Publications

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Zhu, Yuanzhuo; et al. (2021): Extreme climate response to marine cloud brightening in the arid Sahara-Sahel-Arabian Peninsula zone

Zhu, Yuanzhuo; Zhang, Zhihua; Crabbe, M. James C. (2021): Extreme climate response to marine cloud brightening in the arid Sahara-Sahel-Arabian Peninsula zone. In International Journal of Climate Change Strategies and Management. DOI: 10.1108/IJCCSM-06-2020-0051.

"Climatic extreme events are predicted to occur more frequently and intensely and will significantly threat the living of residents in arid and semi-arid regions. Therefore, this study aims to assess climatic extremes’ response to the emerging climate change mitigation strategy using a marine cloud brightening (MCB) scheme."

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21.12.2020

# New Publications

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Zhao, Mengying; et al. (2020): Climate more responsive to marine cloud brightening than ocean albedo modification: A model study

Zhao, Mengying; Cao, Long; Duan, Lei; Bala, Govindasamy; Caldeira, Ken (2020): Climate more responsive to marine cloud brightening than ocean albedo modification: A model study. In Journal of Geophysical Research: Atmospheres. DOI: 10.1029/2020JD033256.

"Marine cloud brightening (MCB) and ocean albedo modification (OAM) are two proposed approaches to intentionally reflect sunlight back to space over oceanic regions. Using the NCAR Community Earth System Model, we compare climate response to MCB and OAM under the framework of fast adjustment and slow feedback."

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03.11.2020

# Calls & events

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Job: Postdoctoral Scholar - Atmospheric Sciences (University of Washington)

No Deadline

"Develop and carry out climate model experiments in which aerosols are introduced into various cloud regimes of the marine boundary layer environment to explore impacts on the planet’s circulation features (near and far field impacts on clouds, winds, precipitation, ocean circulation and mixing, etc)."

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09.06.2020

# Media

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Phys.org: Ocean geoengineering tests violate UN convention: green groups

"Experimental geoengineering schemes to protect areas such as Australia's Great Barrier Reef are "distracting technofixes" that violate an international moratorium on the largely untested tech projects, a coalition of nearly 200 environmental groups said Monday."

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05.06.2020

# Media

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C2G: Guest post: Putting the Great Barrier Reef marine cloud brightening experiment into context

"In what is hoped to be a first step towards mitigating future GBR coral bleaching events, Australian scientists conducted the first outdoor marine cloud brightening (MCB) experiment in late March."

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05.06.2020

# Media

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C2G: Working with nature, so nature can work with us

"In societies that had started to separate humans from the natural world, people are returning to the notion that nature is something we are part of, integrally, which offers indispensable solutions to the multiple crises we face – including climate change. (Of course, there are many who never lost this understanding.)"

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