14.05.2020

# Political Papers

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C2G: Blog 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. The purpose of this experiment was to test a delivery mechanism comprised of 100 high-pressure nozzles that can spray nano-sized sea-salt particles into the air above the reef. At the time this experiment was conducted, leading reef scientists announced that the GBR was undergoing the third mass coral bleaching event in five years."

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30.04.2020

# New Publications

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Duan, Lei; et al. 2020: “A Model‐Based Investigation of Terrestrial Plant Carbon Uptake Response to Four Radiation Modification Approaches.”

Duan, Lei, Long Cao, Govindasamy Bala, and Ken Caldeira. 2020: “A Model‐Based Investigation of Terrestrial Plant Carbon Uptake Response to Four Radiation Modification Approaches.” Journal of Geophysical Research: Atmospheres 125 (9). https://doi.org/10.1029/2019jd031883.

"Using the National Center for Atmospheric Research Community Earth System Model, we performed simulations that represent four idealized radiation modification options: solar constant reduction, sulfate aerosol increase (SAI), marine cloud brightening, and cirrus cloud thinning (CCT)."

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22.04.2020

# Media

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Independent: ‘Snow machine like cannons’ could brighten clouds and halt Great Barrier Reef bleaching‘Snow machine like cannons’ could brighten clouds and halt Great Barrier Reef bleaching

"In a preliminary experiment, a scientific team used a cannon similar to a snow machine to blast droplets of sea water into the sky."

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20.04.2020

# Media

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The Guardian: Scientists trial cloud brightening equipment to shade and cool Great Barrier Reef

"The experiment used a modified turbine with 100 high-pressure nozzles to spray trillions of nano-sized ocean salt crystals into the air from the back of a barge."

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12.04.2020

# Media

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AccuWeather: 'Cloud brightening' won't have effect many are hoping for, scientists say

"By studying cloud formation in the pollution-free skies above the Southern Ocean, scientists were able to identify an inverse relationship between sea salt availability and sulfate aerosols."

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10.04.2020

# New Publications

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Diamond, Michael S.; et al. 2020: Substantial Cloud Brightening From Shipping in Subtropical Low Clouds.”

Diamond, Michael S., Hannah M. Director, Ryan Eastman, Anna Possner, and Robert Wood. 2020: “Substantial Cloud Brightening From Shipping in Subtropical Low Clouds.” AGU Advances 1 (1). https://doi.org/10.1029/2019av000111.

"We attribute a significant increase in cloud reflectivity to enhanced cloud droplet number concentrations within a major shipping corridor in the southeast Atlantic."

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28.11.2019

# New Publications

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Gattuso, J.-P.; et al. (2019): Opportunities for increasing ocean action in climate strategies

Gattuso, J.-P.; et al. (2019): Opportunities for increasing ocean action in climate strategies. IDDRI, Policy Brief N°02/19.

"In this Policy Brief we assess 18 ocean-based measures to support climate policies and the revision of NDCs in the areas of mitigation and adaptation. Ocean-related measures should not be considered as a substitute for climate mitigation on land, which must also be strongly pursued for the benefit of the atmosphere as well as the ocean."

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04.11.2019

# Political Papers

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Fiekowsky, Peter; et al. (2019): Climate Restoration: Solutions to the Greatest Threat Facing Humanity and Nature Today. The Foundation for Climate Restoration, September 2019. White Paper.

Fiekowsky, Peter; Douglis, Carole; Lee, Susan (2019): Climate Restoration: Solutions to the Greatest Threat Facing Humanity and Nature Today. The Foundation for Climate Restoration, September 2019. White Paper. Available online at https://foundationforclimaterestoration.org/wp-content/uploads/2019/09/20190916b_f4cr4_white-paper.pdf.

"The purpose of this paper is to show that we do not in fact need to leave dangerous, unprecedented conditions to our progeny. We have the technology and the financing, now, to reclaim the climate of over a century ago. What we need is the commitment to do so."

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03.06.2019

# Media

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YaleEnvironment360: Geoengineer the Planet? More Scientists Now Say It Must Be an Option

"Human intervention with the climate system has long been viewed as an ill-advised and risky step to slow global warming. But with carbon emissions soaring, initiatives to study and develop geoengineering technologies are gaining traction as a potential last resort."

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24.05.2019

# New Publications

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Bluemling, B.; et al. (2019): Seeding the clouds to reach the sky. Will China's weather modification practices support the legitimization of climate engineering?

Bluemling, B.; Kim, R.; Biermann, F. (2019): Seeding the clouds to reach the sky. Will China's weather modification practices support the legitimization of climate engineering? In AMBIO. DOI: 10.1007/s13280-019-01180-3.

"In this Perspective, we discuss whether in times of quickly proceeding global environmental change, radical global interventions like “climate engineering” may gain legitimacy in China and eventually be deployed or supported. We argue that one cornerstone for whether climate engineering, and solar radiation management in particular, could gain legitimacy in China, is its current weather modification programme."

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