May 2016

13.05.2016

# Media

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Union of Concerned Scientists: Soils to Reverse Climate Change: What Do We Know about “Carbon Farming” Practices?

"“Carbon farming,” in my world as a scientist who studies soils and crop production, seems to be all the rage these days in the media. The idea is to build up carbon in soil while drawing down carbon in the atmosphere through improved soil management. This matters because building healthy soils requires adding carbon, while stabilizing the climate requires taking carbon out of the atmosphere. I want to dig—pun intended!—deeper into the nitty-gritty and discuss what we already know about a few agricultural practices that commonly come up in this discussion."

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13.05.2016

# New Publications

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Muthers, Stefan; et al. (2016): Response of the AMOC to reduced solar radiation – the modulating role of atmospheric-chemistry

Muthers, Stefan; Raible, Christoph C.; Stocker, Thomas F. (2016): Response of the AMOC to reduced solar radiation – the modulating role of atmospheric-chemistry. In Earth Syst. Dynam. Discuss., pp. 1–21. DOI 10.5194/esd-2016-16.

"This dynamical mechanism is driven by the stratospheric cooling in response to the reduced solar forcing, which is strongest in the tropics and leads to a weakening of the Northern polar vortex. In simulations with interactive chemistry, these stratospheric changes are strongly amplified by the reduction of stratospheric ozone."

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13.05.2016

# New Publications

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Reith, Fabian; et al. (2016): Revisiting ocean carbon sequestration by direct injection. A global carbon budget perspective

Reith, Fabian; Keller, David P.; Oschlies, Andreas (2016): Revisiting ocean carbon sequestration by direct injection. A global carbon budget perspective. In Earth Syst. Dynam. Discuss., pp. 1–26. DOI 10.5194/esd-2016-20 .

Maritime carbon injection study connected to CE. "In this study we look beyond the previously studied effects of oceanic CO2 injections on atmospheric and oceanic reservoirs, and also account for carbon cycle and climate feedbacks between the atmosphere and the terrestrial biosphere. Considering these additional feedbacks is important since backfluxes from the terrestrial biosphere to the atmosphere in response to reducing atmospheric CO2 can further offset the targeted reduction."

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13.05.2016

# Media

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Geoengineering Monitor: Small-scale geoengineering? UAE’s rain-making mountain

"But that’s the most messed up thing about this. Mountain-erecting—like its little brother, cloud-seeding—is not only an expensive temporary fix for a bigger problem, it’s also not a sure thing. When the situation gets worse, what happens then? Build another mountain?"

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12.05.2016

# Media

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the guardian: UN climate science chief: it's not too late to avoid dangerous temperature rise

"Lee said the IPCC should also be looking at geoengineering, or climate intervention on a planetary scale. He said he would like to see the climate panel explore the governance of geoengineering, and not just its technical aspects. "

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11.05.2016

# Calls & events

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Job: Director Policy and Markets at the Center for Carbon Removal

(no deadline)

"The Director for Policy and Markets will lead the Center's efforts to engage key government, industry, and NGO stakeholders in the development of carbon removal policies. "

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11.05.2016

# Media

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New Scientist: Adding rocks to oceans could de-acidify water and save coral

"As a potential solution, Francesc Montserrat of the Royal Netherlands Institute for Sea Research and his colleagues are exploring whether a natural mineral can mop up unwanted acid in seawater. “We’re trying to put some numbers on the table so that if politicians decide that we need to do this in 10 to 15 years’ time, the research is there and we can say, ‘here are the problems you might be dealing with’,” he says."

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10.05.2016

# New Publications

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Arino, Yosuke; et al. (2016): Estimating option values of solar radiation management assuming that climate sensitivity is uncertain

Arino, Yosuke; Akimoto, Keigo; Sano, Fuminori; Homma, Takashi; Oda, Junichiro; Tomoda, Toshimasa (2016): Estimating option values of solar radiation management assuming that climate sensitivity is uncertain. In Proc Natl Acad Sci USA, p. 201520795–201520795. DOI 10.1073/pnas.1520795113.

"This paper presents one possible methodology for estimating option values of SRM assuming a fairly moderate scenario on SRM’s use compared with preceding literature, which would be helpful to examine realistic values of SRM for the society where social acceptability of SRM’s actual deployment is not high. Our results emphasize the near- to mid-term role of retaining SRM as a later risk-hedging option in the face of the uncertainty about climate sensitivity."

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09.05.2016

# Calls & events

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News Review of Week 20 of 2016

The news review of calendar week 20 in 2016 is now available here.


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09.05.2016

# New Publications

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Merk, Christine; et al. (2016): Knowledge about aerosol injection does not reduce individual mitigation efforts

Merk, Christine; Pönitzsch, Gert; Rehdanz, Katrin (2016): Knowledge about aerosol injection does not reduce individual mitigation efforts. In Environ. Res. Lett. 11 (5), p. 54009–54009. DOI 10.1088/1748-9326/11/5/054009.

Publication of 2015 working paper. "Policymakers, interest groups or individuals might wronglyperceive SAI as an easyfix for climate change and accordingly reduce their mitigation efforts. This is the first studyto provide an empirical evaluation ofthis claim for individuals."

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