August 2019

26.08.2019

# Media

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Phys.org: Industry guidance touts untested tech as climate fix

"Draft guidelines for how industry fights climate change promote the widespread use of untested technologies that experts fear could undermine efforts to slash planet-warming greenhouse gas emissions, AFP can reveal."

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23.08.2019

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Business Insider: A team of designers wants to build an iceberg-making submarine to pop out 'ice babies' and combat sea-level rise

"A team of designers has put forward a proposal for an iceberg-making submarine that could produce 82-foot-wide, 16-foot-thick chunks of ice."

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22.08.2019

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Project Syndicate: A Geoengineering Trojan Horse

"For fossil-fuel companies, the promise of geoengineering is the ideal excuse to continue with business as usual. Rather than allow the industry to continue to act in its own interest, the world must establish a strong, democratic regulatory mechanism, which includes the option to ban certain technologies outright."

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22.08.2019

# New Publications

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Visioni, D.; et al. (2019): Seasonal Injection Strategies for Stratospheric Aerosol Geoengineering

Visioni, D.; MacMartin, D.; Kravitz, B.; Tilmes, S.; Mills, M.; Richter, J.; Boudreau, M. (2019): Seasonal Injection Strategies for Stratospheric Aerosol Geoengineering. In: Geophys. Res. Lett. 124 (6), S. 7. DOI: 10.1029/2019GL083680.

"Simulations of stratospheric aerosol geoengineering have typically considered injections at a constant rate over the entire year. [...] We simulated single‐point injections of the same amount of SO2 in each of the four seasons and at five different latitudes (30°S, 15°S, equator, 15°N, and 30°N), 5 km above the tropopause. Our findings suggest that injecting only during one season reduces the amount of SO2 needed to achieve a certain aerosol optical depth, thus potentially reducing some of the side effects of geoengineering. We find, in particular, that injections at 15°N or 15°S in spring of the corresponding hemisphere results in the largest reductions in incoming solar radiation."

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22.08.2019

# Media

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Informationsdienst Wissenschaft: What are the future topics of applied research? (German)

German article on CE

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22.08.2019

# Media

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Khaleej Times: Less rain, more droughts if we tamper with the weather

"Although the effects of climate change are becoming increasingly apparent, the progress toward reducing greenhouse-gas emissions remains as disappointing as ever, leading some to tout new technological solutions that could supposedly save the day. Harvard University's David Keith, for example, would have us consider geoengineering - that is, deliberate, large-scale, and highly risky interventions in the Earth's climate system."

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19.08.2019

# Calls & events

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Newsletter of Week 34 of 2019

The newsletter of calendar week 34 in 2019 is now available here.


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19.08.2019

# Media

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The Economist: Sunshady business—the politics of geoengineering (Podcast)

"If efforts to cut emissions fall short, might some nations resort to solar geoengineering—building a sunshade in the stratosphere—to buy more time?"

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19.08.2019

# New Publications

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Holahan, R.; et al. (2019): Disentangling the rhetoric of public goods from their externalities: The case of climate engineering

Holahan, R.; Kashwan, P. (2019): Disentangling the rhetoric of public goods from their externalities: The case of climate engineering. In: Global Transitions 1, S. 132–140. DOI: 10.1016/j.glt.2019.07.001.

"Public goods are defined by the technical conditions of nonexclusion and nonrivalry. Nonetheless, public goods are frequently viewed in environmental policy and scholarly debates as providing strictly positive benefits (or, in the case of public ‘bads’, providing strictly negative costs). We provide a theoretical understanding of heterogeneous externalities produced by public goods to challenge this assumption, by highlighting the ways in which a single public good can simultaneously produce positive benefits for some and negative externalities for others."

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19.08.2019

# Media

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BBC News: Deforestation: Did Ethiopia plant 350 million trees in a day?

"Ethiopia says it planted more than 350 million trees in just one day which, if verified, would be a world record."

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