05.05.2019

# Media

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Eos: A New Road Map for Assessing the Effects of Solar Geoengineering

"A special issue dedicated to modeling the impacts of stratospheric sulfur dioxide injections is a crucial step toward understanding the climate goals this intervention can—and cannot—achieve."

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29.04.2019

# New Publications

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Lenton, A.; et al. (2019): Foresight must guide geoengineering research and development

Lenton, A.; Boyd, P.; Thatcher, M.; Emmerson, K. (2019): Foresight must guide geoengineering research and development. In: Nature Climate change 9 (5), S. 342. DOI: 10.1038/s41558-019-0467-z.

"Large-scale climate geoengineering will probably be required to limit warming to well below 2 °C, in line with the 2015 Paris Agreement. While geoengineering has long been included in the development of many (future) low-carbon emissions pathways, key questions remain about the efficacy and ability of such climate intervention to fulfil its anticipated role in limiting warming. As such, the social license for geoengineering has not been granted for research using unbounded large-scale experiments, never mind full-scale deployment."

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21.04.2019

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Eos: Looking for Climate Solutions Down in the Dirt

"Geoengineering is more than orbiting mirrors and stratospheric aerosols. Innovative modeling considers the impact of no-till farming and radical irrigation."

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21.04.2019

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Intelligencesquaredus: Engineering Solar Radiation Is a Crazy Idea (Video)

"Geoengineering is an ambitious set of experiments proposed by scientists to help mitigate the effects of climate change. And one type in particular, called solar geoengineering, has been the subject of debate. This process involves, among other techniques, injecting reflective particles into the stratosphere to reduce the amount of sun and heat that reaches the planet."

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15.04.2019

# New Publications

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Asayama, S.; et al. (2019): Beyond solutionist science for the Anthropocene: To navigate the contentious atmosphere of solar geoengineering

Asayama, S.; Sugiyama, M.; Ishii, A.; Kosugi, T. (2019): Beyond solutionist science for the Anthropocene: To navigate the contentious atmosphere of solar geoengineering. In: The Anthropocene Review 33 (3), 205301961984367. DOI: 10.1177/2053019619843678.

"This paper explores this close yet precarious relationship between transdisciplinary GEC science and solar geoengineering in the context of Future Earth, a new international platform of Earth system science. Our aim is to understand how a transdisciplinary mode of science can navigate the contention over solar geoengineering and its course of research without breeding polarization. By seeking the immediacy of ‘problem-solving’, Future Earth is drawn into the solutionist thinking that orders the mode of engagement in pursuing consensus."

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08.04.2019

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Union of Concerned Scientists: Confronting Solar Geoengineering: What You Need to Know

"Some researchers are proposing to do experiments to also test the potential feasibility and effectiveness of geoengineering approaches to help limit climate change, while recognizing that mitigation and adaptation must remain our first-line solutions."

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08.04.2019

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Interesting Engineering: 7 Geoengineering Solutions That Might Cause More Damage Than Good

"Today we celebrate World Geology Day and nothing makes more sense than to stop for a few minutes and reflect on some good old geoengineering solutions that we have devised for the betterment of humanity."

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01.04.2019

# New Publications

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Zhan, P.; et a. (2019): Impacts of sulfate geoengineering on rice yield in China

Zhan, P.; Zhu, W.; Zhang, T.; Cui, X.; Li, N. (2019): Impacts of sulfate geoengineering on rice yield in China. Results from a multi‐model ensemble. In: Earth's Future. DOI: 10.1029/2018EF001094.

"In this study, we simulated the impacts of sulfate geoengineering on rice yield in China both with sufficient irrigation (irrigated) and without irrigation (rainfed). We used Geoengineering Model Intercomparison Project (GeoMIP) G4 climates from 6 climate models to force the ORYZA version 3 crop model to simulate rice yields under sulfate geoengineering scenario."

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01.04.2019

# New Publications

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Bal, P.; et al. (2019): Effects of global warming and solar geoengineering on precipitation seasonality

Bal, P.; Pathak, R.; Mishra, S.; Sahany, S. (2019): Effects of global warming and solar geoengineering on precipitation seasonality. In: Environ. Res. Lett. 14 (3), S. 34011. DOI: 10.1088/1748-9326/aafc7d.

"The effects of global warming and geoengineering on annual precipitation and its seasonality over different parts of the world are examined using the piControl, 4xCO2 and G1 simulations from eight global climate models participating in the Geoengineering Model Intercomparison Project. Specifically, we have used relative entropy, seasonality index, duration of the peak rainy season and timing of the peak rainy season to investigate changes in precipitation characteristics under 4xCO2 and G1 scenarios with reference to the piControl."

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01.04.2019

# New Publications

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Heyen, D.; et al. (2019): Strategic implications of counter-geoengineering: Clash or cooperation?

Heyen, D.; Horton, J.; Moreno-Cruz, J. (2019): Strategic implications of counter-geoengineering. Clash or cooperation? In: Journal of Environmental Economics and Management. DOI: 10.1016/j.jeem.2019.03.005.

"Solar geoengineering has received increasing attention as an option to temporarily stabilize global temperatures. A key concern is that heterogeneous preferences over the optimal amount of cooling combined with low deployment costs may allow the country with the strongest incentive for cooling, the so-called free-driver, to impose a substantial externality on the rest of the world. We analyze whether the threat of counter-geoengineering technologies capable of negating the climatic effects of solar geoengineering can overcome the free-driver problem and tilt the game in favor of international cooperation."

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