01.04.2013

# New Publications

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Haywood, Jim M.; et al. (2013): Asymmetric forcing from stratospheric aerosols impacts Sahelian rainfall

Haywood, Jim M.; Jones, Andy; Bellouin, Nicolas; Stephenson, David (2013): Asymmetric forcing from stratospheric aerosols impacts Sahelian rainfall. In: Nature Climate change. DOI 10.1038/nclimate1857

Aerosol modeling study that is connected to SRM. "We suggest that sporadic volcanic eruptions in the Northern Hemisphere also strongly influence this gradient and cause Sahelian drought. Using de-trended observations from 1900 to 2010, we show that three of the four driest Sahelian summers were preceded by substantial Northern Hemisphere volcanic eruptions."

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13.11.2012

# New Publications

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Bewick, R.; et al. (2012): Heliotropic Dust Rings for Earth Climate Engineering

Bewick, R.; Lücking, C.; Colombo, C.; Sanchez, J.P; McInnes, C.R (2012): Heliotropic Dust Rings for Earth Climate Engineering. In: Advances in Space Research. DOI dx.doi.org/10.1016/j.asr.2012.10.024

"This paper examines the concept of a Sun-pointing elliptical Earth ring comprised of dust grains to offset global warming."

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06.11.2012

# Media

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[press review] Localised SRM study (1st update, 6.11.)

After the wide media coverage of the ocean fertilization project, a SRM study from MacMartin/Keith/Kravitz/Caldeira (2012) also got some feedback.


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26.10.2012

# Projects

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Update on SPICE Project

The EPSRC updated findings of the Stratospheric Particle Injection for Climate Engineering (SPICE).

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09.10.2012

# Media

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LiveScience: Asteroid Dust Could Fight Climate Change on Earth

Media response to the asteroid dust study.

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20.09.2012

# New Publications

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Hulme, M. (2012): Climate change: Climate engineering through stratospheric aerosol injection

Hulme, M. (2012): Climate change: Climate engineering through stratospheric aerosol injection. In: Progress in Physical Geography 36 (5), pp. 694–705

Analysing stratospheric aerosols on different social and political sacales. "In this progress report on climate change, I examine the growing literature dealing with the proposal to engineer global climate through the deliberate injection of aerosols into the stratosphere."

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13.09.2012

# New Publications

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Bernstein, D. N.; et al. (2012): Could aerosol emissions be used for regional heat wave mitigation?

Bernstein, D. N.; Neelin, J. D.; Li, Q. B.; Chen, D. (2012): Could aerosol emissions be used for regional heat wave mitigation? In: Atmos. Chem. Phys. Discuss. 12 (9), pp. 23793–23828. doi 10.5194/acpd-12-23793-2012

Article on regional emission for CE-like usage. "Here adaptation to a potential regional-scale application to offset the impacts of heat waves is critically examined."

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11.09.2012

# New Publications

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Driscoll, Simon; et al. (2012): Coupled Model Intercomparison Project 5 (CMIP5) simulations of climate following volcanic eruptions

Driscoll, Simon; Bozzo, Alessio; Gray, Lesley J.; Robock, Alan; Stenchikov, Georgiy (2012): Coupled Model Intercomparison Project 5 (CMIP5) simulations of climate following volcanic eruptions. In: J. Geophys. Res. 117 (D17). DOI 10.1029/2012JD017607 - full paper

Climate modeling study of vulcanic eruptions. "This is also of concern for the accuracy of geoengineering modeling studies that assess the atmospheric response to stratosphere-injected particles."

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31.08.2012

# New Publications

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McClellan, Justin; et al. (2012): Cost analysis of stratospheric albedo modification delivery systems

McClellan, Justin; Keith, David W.; Apt, Jay (2012): Cost analysis of stratospheric albedo modification delivery systems. In: Environ. Res. Lett 7 (3), pp. 34019.DOI 10.1088/1748-9326/7/3/034019

Aerosol SRM cost analysis. "We perform engineering cost analyses of systems capable of delivering 1–5 million metric tonnes (Mt) of albedo modification material to altitudes of 18–30 km."

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25.08.2012

# New Publications

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Cao, Long; et al. (2012): Climate response to changes in atmospheric carbon dioxide and solar irradiance on the time scale of days to weeks

Cao, Long; Bala, Govindasamy; Caldeira, Ken (2012): Climate response to changes in atmospheric carbon dioxide and solar irradiance on the time scale of days to weeks. In: Environ. Res. Lett 7 (3), pp. 34015. DOI 10.1088/1748-9326/7/3/034015

"In this study, we investigate climate response on the time scale of days to weeks to a step-function quadrupling of atmospheric CO2 and contrast this with the response to a 4% increase in solar irradiance."

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