26.11.2018

# Media

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Fokus online: Researchers suggest to dim the sun to stop climate change (German)

German article on CE.

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26.11.2018

# Media

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The Guardian: Solar geoengineering could be ‘remarkably inexpensive’ – report

"Cooling the Earth by injecting sun-blocking particles into the stratosphere could be “remarkably inexpensive”, according to the most detailed engineering analysis to date."

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21.11.2018

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Energyworld: Attractiveness of Air Capture: Time for a reality check

"The Intergovernmental Panel on Climate Change (IPCC) released a major report a month ago, which is almost a status update on the fight against climate change – and the outlook is very grim. We seem to be coming close to our climate rope and the time is running out. In this context, the report talks about Air Capture, capturing carbon dioxide (CO2) from ambient air, as a silver bullet that can help “save humanity”. I wanted to present a different take on Air Capture given my past experience with it."

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21.11.2018

# New Publications

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Harding, A.; et al. (2018): The economics of geoengineering

Harding, A.; Moreno-Cruz, J. (2018): The economics of geoengineering. In: Letcher T. (ed.): MANAGING GLOBAL WARMING. An interface of technology and human issues. [S.l.]: ELSEVIER ACADEMIC PRESS, S. 729–750.

"Geoengineering provides an alternative strategy from abatement to counteract or mask impacts of anthropogenic climate change. Geoengineering strategies can be classified as either solar radiation management (SRM) or carbon dioxide removal (CDR). SRM strategies are cheap, quick, but imperfect. CDR strategies are expensive, slow, but perfect and can generate negative net emissions. High abatement costs and shared global benefits have created a free-rider problem, but properties of geoengineering have the potential to disrupt that impasse. Geoengineering can also introduce new problems through additional risks and uncertainties. Even if the use of geoengineering is found to be optimal, strategic decision making may produce suboptimal outcomes. Over the past decade, research has examined if geoengineering is a serious alternative and when the benefits of using it outweigh the costs."

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21.11.2018

# New Publications

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Richter, R.; et al. (2018): Geoengineering. Sunlight reflection methods and negative emissions technologies for greenhouse gas removal

Richter, R.; Caillol, S.; Ming, T. (2018): Geoengineering. Sunlight reflection methods and negative emissions technologies for greenhouse gas removal. In: Letcher, T. (ed.): MANAGING GLOBAL WARMING. An interface of technology and human issues. [S.l.]: ELSEVIER ACADEMIC PRESS, p. 581–636.

"In order to keep global warming well below 2°C, the greenhouse gases emissions have to drastically drop by up to 70% till 2050, falling then to zero, and becoming negative by 2100. Negative emissions technologies or NETs are included in almost all scenarios of the integrated assessment models used by the Intergovernmental Panel on Climate Change to build the synthesis report that led to the Paris agreement. While intensive research is urgently needed to assess the numerous NETs proposed by scientists, others propose a technological fix to cool the Earth artificially and win time: those proposals are named geoengineering."

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21.11.2018

# Media

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Die Debatte: Reducing CO2 - but how? (German)

German article on CE.

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21.11.2018

# Media

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Die Debatte: International regulations for geoengineering? (German)

German article on CE.

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21.11.2018

# Media

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Die Debatte: Geoengineering in politics (German)

German article on CE.

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19.11.2018

# Calls & events

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Newsletter of Week 47 of 2018

The newsletter of calendar week 47 in 2018 is now available here.


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19.11.2018

# Media

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Phys.org: How algae could sustainably reduce the carbon dioxide concentration in the atmosphere

"In collaboration with fellow researchers, chemists at the Technical University of Munich (TUM) have developed a process that, according to initial calculations, can facilitate economically removing the greenhouse gas carbon dioxide from the atmosphere. The latest World Climate Report (IPCC Special Report on Global Warming of 1.5 ° C) acknowledges the global relevance of the process."

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