29.04.2015

# Media

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Science Daily: Whitening the Arctic Ocean: May restore sea ice, but not climate

Response to Cvijanovic, Ivana; et al. (2015). "It has been proposed that such disastrous climate effects could be offset by technological approaches. One such proposal is to artificially whiten the surface of the Arctic Ocean in order to increase the reflection of the Sun's energy into space and restore sea ice."

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29.04.2015

# New Publications

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Cvijanovic, Ivana; et al. (2015): Impacts of ocean albedo alteration on Arctic sea ice restoration and Northern Hemisphere climate

Cvijanovic, Ivana; Caldeira, Ken; MacMartin, Douglas G. (2015): Impacts of ocean albedo alteration on Arctic sea ice restoration and Northern Hemisphere climate. In Environ. Res. Lett. 10 (4). DOI 10.1088/1748-9326/10/4/044020.

"Motivated by this, we investigate the impacts of idealized high latitude ocean albedo changes on Arctic sea ice restoration and climate. In our simulated 4xCO2 climate, imposing surface albedo alterations over the Arctic Ocean leads to partial sea ice recovery and a modest reduction in Arctic warming."

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08.04.2015

# New Publications

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Nagase, H.; et al. (2015): Effects of Injected Ice Particles in the Lower Stratosphere on the Antarctic Ozone Hole

Nagase, H.; Kinnison, D. E.; Petersen, K.; Vitt, F.; Brasseur, G. P. (2015): Effects of Injected Ice Particles in the Lower Stratosphere on the Antarctic Ozone Hole. In Earth's Future, pp. n/a. DOI 10.1002/2014EF000266.

"In this paper, we suggest a geo-engineering approach that will remove substantial amounts of hydrogen chloride (HCl) from the lower stratosphere in fall and hence limit the formation of the Antarctic ozone hole in late winter and early spring. HCl will be removed by ice from the atmosphere at temperatures higher than the threshold under which polar stratospheric clouds (PSCs) are formed if sufficiently large amounts of ice are supplied to produce water saturation."

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18.11.2014

# Media

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Alternatives Journal: Academic Evolution: Innovation Knows No Boundaries

Amongst others on Oxford Geoengineering Program. "The third instalment in our "Skills for the New Economy" series looks at interdisciplinary approaches to big problems."

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17.11.2014

# New Publications

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MacMartin, Douglas G.; et al. (2014): Solar geoengineering to limit the rate of temperature change

MacMartin, Douglas G.; Caldeira, Ken; Keith, David W. (2014): Solar geoengineering to limit the rate of temperature change. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0134.

"Impacts of climate change, however, are related to the rate of change as well as its magnitude. We thus describe an alternative scenario in which solar geoengineering is used only to constrain the rate of change of global mean temperature; this leads to a finite deployment period for any emissions pathway that stabilizes global mean temperature."

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06.10.2014

# Media

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Wall Street Journal: The Astronomic Costs of Reversing Climate Change

"Reversing all fossil-fuel-generated carbon dioxide since the 18th century (est. 392 billion tons) would supposedly require $196 billion – $392 billion total, labor excluded."

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24.03.2014

# Calls & events

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News Review of Week 13

The news review of calendar week 13 in 2014 is now available here.


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21.01.2014

# New Publications

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Feliciano, Diana (2013): The ethics of geoengineering

Feliciano, Diana (2013): The ethics of geoengineering. In: World Social Science Report 2013: OECD Publishing. DOI 10.1787/9789264203419-en

"The social sciences have a role to play in clarifying the moral hazards associated with geoengineering, given that future generations may have no other choice but to implement such projects."

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24.12.2013

# New Publications

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Buck, Holly Jean; et al. (2013): Gender and Geoengineering

Buck, Holly Jean; Gammon, Andrea R.; Preston, Christopher J. (2013): Gender and Geoengineering. In Hypatia, pp. n/a. DOI 10.1111/hypa.12083.

"The authors consider four contexts in which geoengineering appears to have important gender dimensions."

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05.12.2013

# Media

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SciDevNet: Study finds geoengineering research 'free for all'

Media response to the forthcoming paper Reynolds (2014). "Research into geoengineering is not only permitted but also encouraged."

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