15.09.2014

# New Publications

0 Comments

Anand, S.; Mayya, Y. S. (2014): Comment on "Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications"

Anand, S.; Mayya, Y. S. (2014): Comment on "Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications". In Atmos. Chem. Phys. Discuss. 14 (16), pp. 23797–23805. DOI: 10.5194/acpd-14-23797-2014.

Comment on Stuart et al. (2013). "We examine the parametrized model of Stuart et al. (2013) vis-a-vis a diffusion based model proposed by us earlier (Anand and Mayya, 2011) to estimate the fraction of aerosol particles surviving coagulation in a dispersing plume."

Link


Read more »

15.09.2014

# New Publications

0 Comments

Stuart, G. S.; et al. (2013): Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications

Stuart, G. S.; Stevens, R. G.; Partanen, A.-I.; Jenkins, A. K. L.; Korhonen, H.; Forster, P. M. et al. (2013): Reduced efficacy of marine cloud brightening geoengineering due to in-plume aerosol coagulation: parameterization and global implications. In Atmos. Chem. Phys. 13 (20), pp. 10385–10396. DOI: 10.5194/acp-13-10385-2013.

On marine cloud brightening. "We explore the evolution of these sea-salt plumes using a multi-shelled Gaussian plume model with size-resolved aerosol coagulation. We determine how the final number of particles depends on meteorological conditions, including wind speed and boundary-layer stability, as well as the emission rate and size distribution of aerosol emitted."

Link


Read more »

24.08.2014

# New Publications

0 Comments

Bala, Govindasamy (2014): Space Sunshades and Climate Change

Bala, Govindasamy (2014): Space Sunshades and Climate Change. In Bill Freedman (Ed.): Global Environmental Change. Dordrecht: Springer Netherlands, pp. 803–815. DOI 10.1007/978-94-007-5784-4_25

"In this section, the various space-based SRM methods which are likely to reduce the incoming solar radiation uniformly across the globe are discussed."

Link


Read more »

18.08.2014

# New Publications

0 Comments

Morrow, David R. (2014): Starting a Flood to Stop a Fire? Some Moral Constraints on Solar Radiation Management

Morrow, David R. (2014): Starting a Flood to Stop a Fire? Some Moral Constraints on Solar Radiation Management. In Ethics, Policy & Environment 17 (2), pp. 123–138. DOI 10.1080/21550085.2014.926056.

"This paper examines the implications of two moral constraints—the Doctrine of Doing and Allowing, and the Doctrine of Double Effect—on this argument for SRM and SRM research."

Link


Read more »

18.08.2014

# New Publications

0 Comments

Horton, Joshua (2014): Solar Geoengineering: Reassessing Costs, Benefits, and Compensation

Horton, Joshua (2014): Solar Geoengineering: Reassessing Costs, Benefits, and Compensation. In Ethics, Policy & Environment 17 (2), pp. 175–177. DOI 10.1080/21550085.2014.926078.

"In this brief commentary, I will consider the true severity of several of the obstacles identified by Svoboda and Irvine, and make the case that a comprehensive ethical perspective on SRM requires a more complete exploration of the potential costs and benefits of solar geoengineering."

Link


Read more »

18.08.2014

# New Publications

0 Comments

Tilmes, S.; et al. (2014): A new Geoengineering Model Intercomparison Project (GeoMIP) experiment designed for climate and chemistry models

Tilmes, S.; Mills, M. J.; Niemeier, U.; Schmidt, H.; Robock, A.; Kravitz, B. et al. (2014): A new Geoengineering Model Intercomparison Project (GeoMIP) experiment designed for climate and chemistry models. In Geosci. Model Dev. Discuss. 7 (4), pp. 5447–5464. DOI 10.5194/gmdd-7-5447-2014.

"A new Geoengineering Model Intercomparison Project (GeoMIP) experiment "G4 specified stratospheric aerosols" (short name: G4SSA) is proposed to investigate the impact of stratospheric aerosol geoengineering on atmospheric composition, climate, and the environment."

Link


Read more »

06.08.2014

# New Publications

0 Comments

Zhuo, Zhihong; et al. (2014): Proxy evidence for China's monsoon precipitation response to volcanic aerosols over the past seven centuries

Zhuo, Zhihong; Gao, Chaochao; Pan, Yuqing (2014): Proxy evidence for China's monsoon precipitation response to volcanic aerosols over the past seven centuries. In J. Geophys. Res. Atmos. 119 (11), pp. 6638–6652. DOI 10.1002/2013JD021061 .

Volcanic eruption study with link to stratospheric CE. "Our findings illustrate the important role stratospheric aerosols have played in altering China's precipitation during the summer monsoon season and can shed new light on the possible effects that stratospheric geoengineering may have on China's precipitation."

Link


Read more »

05.08.2014

# New Publications

0 Comments

Kravitz, Ben; et al. (2014): Future Directions in Simulating Solar Geoengineering

Kravitz, Ben; Robock, Alan; Boucher, Olivier (2014): Future Directions in Simulating Solar Geoengineering. In Eos Trans. AGU 95 (31), p. 280–280. DOI 10.1002/2014EO310010.

"The Geoengineering Model Intercomparison Project (GeoMIP) created a framework of geoengineering simulations in climate models that have been performed by modeling centers throughout the world"

Link


Read more »

31.07.2014

# Media

0 Comments

WGC Blog: “Schrödinger’s SRM”

"“Schrödinger’s SRM”- Guest Post- Duncan McLaren -University of Lancaster"

Link


Read more »

28.07.2014

# New Publications

0 Comments

Kalidindi, Sirisha; et al. (2014): Modeling of solar radiation management: a comparison of simulations using reduced solar constant and stratospheric sulphate aerosols

Kalidindi, Sirisha; Bala, Govindasamy; Modak, Angshuman; Caldeira, Ken (2014): Modeling of solar radiation management: a comparison of simulations using reduced solar constant and stratospheric sulphate aerosols. In: Clim Dyn. DOI: 10.1007/s00382-014-2240-3.

"In this study, a global climate model is used to evaluate the differences in the climate response to SRM by uniform solar constant reduction and stratospheric aerosols."

Link


Read more »