25.09.2017

# Calls & events

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Newsletter of Week 39 of 2017

The newsletter of calendar week 39 in 2017 is now available here.


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25.09.2017

# Media

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Baines Report: Spraying the Skies: an Untested Stopgap for Climate Change

"Given the persistent problems posed by climate change and the dynamics of our current political landscape, SRM is no longer the technophile’s pipe dream. But it is also an unknown quantity. Regardless, the next time geoengineering researchers congregate to talk shop, the idea that we could be spraying the upper layers of our atmosphere to deflect sunlight to counteract climate change will be less of a theoretical possibility and more of a real option."

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25.09.2017

# Media

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Kölsche Rundschau: Technology against climate change (German)

German newspaper article on CE.

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25.09.2017

# Media

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Salzburger Nachrichten: Humans' controle (German)

Austrian newspaper article on CE.

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24.09.2017

# Media

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Forbes: As Humans Fumble Climate Challenge, Interest Grows In Geoengineering

"Scholars of geoengineering have reported increasing interest in their work this month as humans seem increasingly unlikely to avert catastrophic global warming. Governments, universities, think tanks and international bodies are turning to the idea of tinkering with the earth by making it absorb more carbon dioxide or reflect more sunlight into space, the scholars said."

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22.09.2017

# Media

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The National Interest: Could Geoengineering Save the Planet from Global Warming?

"The field of climate engineering remains largely unknown, especially to policymakers and the public."

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22.09.2017

# Media

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Environmental Guru: Could climate engineering technologies weaken hurricanes?

"With this in mind, we asked members of our Board of Advisors, made up of physical and social scientists, to comment on the question “Could climate engineering technologies be used to slow or weaken hurricanes? Is this a research question worth proposing or a distraction?” "

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22.09.2017

# New Publications

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Burns, Wil; Nicholson, Simon (2017): Bioenergy and carbon capture with storage (BECCS). The prospects and challenges of an emerging climate policy response

Burns, Wil; Nicholson, Simon (2017): Bioenergy and carbon capture with storage (BECCS). The prospects and challenges of an emerging climate policy response. In J Environ Stud Sci 15 (2), p. 1360. DOI: 10.1007/s13412-017-0445-6.

"There is increasing impetus for large-scale deployment of carbon dioxide removal geoengineering approaches to help keep temperatures to below 2 °C, as provided for under the Paris Agreement. The primary option that has been discussed to date is Bioenergy with carbon capture and storage (BECCS). While BECCS could sequester very large amounts of carbon dioxide, it also poses substantial socio-economic risks to society, as well as threats to biodiversity. This essay suggests that a human rights-based approach can help to protect the interests of those who might be adversely impacted by BECCS deployment."

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22.09.2017

# New Publications

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Visioni, Daniele; et al. (2017): Sulfate geoengineering impact on methane transport and lifetime. Results from the Geoengineering Model Intercomparison Project (GeoMIP)

Visioni, Daniele; Pitari, Giovanni; Aquila, Valentina; Tilmes, Simone; Cionni, Irene; Di Genova, Glauco; Mancini, Eva (2017): Sulfate geoengineering impact on methane transport and lifetime. Results from the Geoengineering Model Intercomparison Project (GeoMIP). In Atmos. Chem. Phys 17 (18), pp. 11209–11226. DOI: 10.5194/acp-17-11209-2017.

"Sulfate geoengineering (SG), made by sustained injection of SO2 in the tropical lower stratosphere, may impact the CH4 abundance through several photochemical mechanisms affecting tropospheric OH and hence the methane lifetime. (a) The reflection of incoming solar radiation increases the planetary albedo and cools the surface, with a tropospheric H2O decrease. (b) The tropospheric UV budget is upset by the additional aerosol scattering and stratospheric ozone changes: the net effect is meridionally not uniform, with a net decrease in the tropics, thus producing less tropospheric O(1D). (c) The extratropical downwelling motion from the lower stratosphere tends to increase the sulfate aerosol surface area density available for heterogeneous chemical reactions in the mid-to-upper troposphere, thus reducing the amount of NOx and O3 production. (d) The tropical lower stratosphere is warmed by solar and planetary radiation absorption by the aerosols."

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22.09.2017

# Media

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Fusion: Can Geoengineering Reverse the Damage We Have Caused to Earth? (Video)

"Climate scientist Josh Willis takes on geoengineering. Share this video so that it can hopefully reach Donald Trump and he can make "bigly" changes."

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