22.10.2017

# Media

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Natural Blaze: Scientists Calling for Geoengineering to Dim the Sun for the Corals

Response to New Scientist article. "Their theory of bleached corals is that when the sea is too warm, corals expel the tiny algae living in their tissues, which are supposed to feed them through photosynthesis. But then the corals turn white and starve to death. So basically, the researchers have a one-track mind to simply keep temperatures down."

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22.10.2017

# Media

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New Scientist: Dimming the sun could save corals from bleaching and hurricanes

"Time for artificial planet coolers? A cooling “sunshade” for the planet could reduce harmful coral bleaching and the number of hurricanes, which damage reefs. With the effects of climate change becoming increasingly apparent, the idea of squirting a cloud of sulphate aerosols into the upper atmosphere is being investigated by several groups of scientists. This would scatter some of the sun’s rays back into space, reducing the rate at which the Earth is warming."

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20.10.2017

# New Publications

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Dagon, Katherine; Schrag, Daniel P. (2017): Regional Climate Variability under Model Simulations of Solar Geoengineering

Dagon, Katherine; Schrag, Daniel P. (2017): Regional Climate Variability under Model Simulations of Solar Geoengineering. In J. Geophys. Res. Atmos. DOI: 10.1002/2017JD027110.

"Here we investigate changes in boreal summer climate variability under solar geoengineering using multiple ensembles of model simulations. We find that spatially uniform solar geoengineering creates a strong meridional gradient in the Northern Hemisphere temperature response, with less consistent patterns in precipitation, evapotranspiration, and soil moisture."

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19.10.2017

# Media

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Spiegel: US scientist wants to test global sunshade (German)

German newspaper article on ScopEx.

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18.10.2017

# Media

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New24: Climate-disrupting volcanoes helped topple ancient Egypt: study

"The findings, the authors said, also highlight the risk today of climate engineering schemes that would combat global warming by injecting billions of tiny particles into the stratosphere - just like a volcano - to block some of the sun's rays. Even if so-called solar radiation management lowers the planet's temperature a notch or two, it could inadvertently cause major disruptions in rainfall patterns. "Ptolemaic vulnerability to volcanic eruptions offers a caution for all monsoon-dependent agriculture regions," which today include 70% of the world's population, the authors wrote."

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17.10.2017

# New Publications

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Clingerman, Forrest; et al. (2017): Character and Religion in Climate Engineering

Clingerman, Forrest; O'Brien, Kevin J.; Ackerman, Thomas P. (2017): Character and Religion in Climate Engineering. In Issues in Science & Technology 34 (1).

"Here we seek to point out a useful but often-neglected conversation partner that can aid these discussions: religion. Religious traditions offer concepts and vocabularies for addressing ethics and policy. Religion is formatively influential for a majority of the world’s population, but is too often ignored in discussions of the social dimensions of climate engineering. Though we are not suggesting that all ethics and policy must “be religious,” we do argue that everyone (believers and nonbelievers alike) can profit from analyzing the distinctive moral and political ideas emerging from religious traditions and worldviews. In particular, we hold that religion is important to broaden the conversation to include the moral issue of character."

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14.10.2017

# Media

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National Geographic: Can We Engineer a Way to Stop a Hurricane?

"A horrible hurricane season has revived the old dream of throttling the storms—perhaps by cooling the warm seas that energize them."

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13.10.2017

# Calls & events

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Call for Application: DECIMAL Fund

(no deadline)

"SRMGI is pleased to announce the creation of a new research fund for modelling the impacts of SRM across the developing world: Developing Country Impacts Modelling Analysis for SRM (DECIMALS). The fund will support developing country scientists who want to analyse the possible impacts that SRM could have on their regions."

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13.10.2017

# New Publications

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Zhang, Zhihua; et al. (2017): Impacts of stratospheric aerosol geoengineering strategy on Caribbean coral reefs

Zhang, Zhihua; Jones, Andy; Crabbe, M. James C. (2017): Impacts of stratospheric aerosol geoengineering strategy on Caribbean coral reefs. In Int J of Cl Chan Strat and Man, p. 36. DOI: 10.1108/IJCCSM-05-2017-0104.

" In this study, we model impacts of stratospheric aerosol geoengineering on coral reefs. We will use the HadGEM2-ES climate model to model and evaluate impacts of stratospheric aerosol geoengineering on coral reefs."

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10.10.2017

# New Publications

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Xia, Lili; et al. (2017): Impacts of stratospheric sulfate geoengineering on tropospheric ozone

Xia, Lili; Nowack, Peer J.; Tilmes, Simone; Robock, Alan (2017): Impacts of stratospheric sulfate geoengineering on tropospheric ozone. In Atmos. Chem. Phys 17 (19), pp. 11913–11928. DOI: 10.5194/acp-17-11913-2017.

"Here, we examine the potential effects of stratospheric sulfate aerosols and solar insolation reduction on tropospheric ozone and ozone at Earth's surface. Ozone is a key air pollutant, which can produce respiratory diseases and crop damage. Using a version of the Community Earth System Model from the National Center for Atmospheric Research that includes comprehensive tropospheric and stratospheric chemistry, we model both stratospheric sulfur injection and solar irradiance reduction schemes, with the aim of achieving equal levels of surface cooling relative to the Representative Concentration Pathway 6.0 scenario."

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