Monat: Mai 2016

Calls

CfP: Crutzen +10: Reflecting upon 10 years of geoengineering research

Deadline: 30. July 2016

„The year 2016 marks the 10 year anniversary of Nobel laureate Paul Crutzen’s seminal 2006 contribution on geoengineering, “Albedo enhancement by stratospheric sulfur injection: A contribution to solve a policy dilemma?” Crutzen’s paper in climatic change sparked an unprecedented surge of academic, public, and political interest in geoengineering. AGU’s journal Earth’s Future invites leading experts in the field of geoengineering research to contribute brief reflections (2 – 5 pages) on the development of the discussion over the past decade and to consider where it may be going in the next 10 years.“

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Peer-reviewed Publications

Matthews, M.; et al. (2016): Laser vaporization of cirrus-like ice particles with secondary ice multiplication

Matthews, M.; Pomel, F.; Wender, C.; Kiselev, A.; Duft, D.; Kasparian, J. et al. (2016): Laser vaporization of cirrus-like ice particles with secondary ice multiplication. In Science Advances 2 (5), e1501912-e1501912. DOI 10.1126/sciadv.1501912.

„We investigate the interaction of ultrashort laser filaments with individual 90-μm ice particles, representative of cirrus particles. The ice particles fragment under laser illumination. By monitoring the evolution of the corresponding ice/vapor system at up to 140,000 frames per second over 30 ms, we conclude that a shockwave vaporization supersaturates the neighboring region relative to ice, allowing the nucleation and growth of new ice particles, supported by laser-induced plasma photochemistry.“

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Peer-reviewed Publications

Kravitz, Ben; et al. (2016): Geoengineering as a design problem

Kravitz, Ben; MacMartin, Douglas G.; Wang, Hailong; Rasch, Philip J. (2016): Geoengineering as a design problem. In Earth Syst. Dynam. 7 (2), pp. 469–497. DOI 10.5194/esd-7-469-2016.

„Here we turn this approach around by first choosing example climate objectives and then designing a strategy to meet those objectives in climate models.[nbsp]There are four essential criteria for designing a strategy: (i)[nbsp]an explicit specification of the objectives, (ii)[nbsp]defining what climate forcing agents to modify so the objectives are met, (iii)[nbsp]a method for managing uncertainties, and (iv)[nbsp]independent verification of the strategy in an evaluation model.„

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Media

Mercury: University of Tasmania professors given fellowships from Australian Research Council to tackle climate change

„TWO University of Tasmania professors have today been honoured with Australian Laureate Fellowships from the Australian Research Council. […] Professor Boyd will evaluate the feasibility of boosting carbon dioxide removal by Southern Ocean microbes to offset climate change, to provide a framework for future research and inform international policy on the use of geoengineering — large-scale intervention in the Earth’s natural systems — to mitigate against climate change.“

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Peer-reviewed Publications

Lambini, Cosmas Kombat (2016): Internalising Solar Radiation Management Technological Externalities. An ethical review on the design of economic instruments

Lambini, Cosmas Kombat (2016): Internalising Solar Radiation Management Technological Externalities. An ethical review on the design of economic instruments. In Advances in Climate Change Research. DOI 10.1016/j.accre.2016.04.003.

„Technical and ethical challenges need to be assessed and addressed before any possible compensation system is designed and implemented. Further research need to be conducted and scenarious analysis on SRM possible effects and effective control policies to be tested and implemented.“

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Peer-reviewed Publications

Laakso, A.; et al. (2016): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering

Laakso, A.; Kokkola, H.; Partanen, A.-I.; Niemeier, U.; Timmreck, C.; Lehtinen, K. E. J. et al. (2016): Radiative and climate impacts of a large volcanic eruption during stratospheric sulfur geoengineering. In Atmos. Chem. Phys. 16 (1), pp. 305–323. DOI 10.5194/acp-16-305-2016.

„Here we employ a global aerosol-climate model and an Earth system model to study the radiative and climate changes occurring after an erupting volcano during solar radiation management (SRM). According to our simulations the radiative impacts of the eruption and SRM are not additive and the radiative effects and climate changes occurring after the eruption depend strongly on whether SRM is continued or suspended after the eruption.„

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