Monat: Juni 2017

The National UEA: Sunny outlook for rain-inducing cloud seeding, researchers forecast

„In Britain, projects have analysed whether cloud seeding could help to lower the temperatures of the sea surface, which could make hurricanes less powerful by starving them of energy. Perhaps more outlandish is the suggestion that cloud seeding could limit global warming. Among those interested in producing clouds that could reflect sunlight is Stephen Salter, emeritus professor of engineering design at the University of Edinburgh.“

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Zelli, Fariborz; et al. (2017): Institutional complexity and private authority in global climate governance. The cases of climate engineering, REDD+ and short-lived climate pollutants

Zelli, Fariborz; Möller, Ina; van Asselt, Harro (2017): Institutional complexity and private authority in global climate governance. The cases of climate engineering, REDD+ and short-lived climate pollutants. In: Environmental Politics 26 (4), S. 669–693. DOI: 10.1080/09644016.2017.1319020[nbsp]

„How and why do institutional architectures, and the roles of private institutions therein, differ across separate areas of climate governance? Here, institutional complexity is explained in terms of the problem-structural characteristics of an issue area and the associated demand for, and supply of, private authority. These characteristics can help explain the degree of centrality of intergovernmental institutions, as well as the distribution of governance functions between these and private governance institutions. This framework is applied to three emerging areas of climate governance: reducing emissions from deforestation and forest degradation (REDD+), short-lived climate pollutants (SLCPs), and climate engineering.“

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Power Mag: The Deep Dispute over “Deep Decarbonization”

„It began as an academic argument over how the world could meet a goal of 90% reductions in carbon dioxide emissions by 2050, known as “deep decarbonization.” Underneath the academic language is a fight among renewable energy advocates on the one hand and defenders of a role for conventional generating technologies, particularly nuclear, on the other. […] Nevertheless, the daunting task of deep decarbonization could lead to climate engineering if the world definitively determines that a 2-degree-Celsius rise in global temperatures is an existential threat to the planet.“

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Schrickel, Isabell; Engemann, Christoph (2017): Dealing with Climate Change. A Conversation with Paul N. Edwards and Oliver Geden

Schrickel, Isabell; Engemann, Christoph (2017): Dealing with Climate Change. A Conversation with Paul N. Edwards and Oliver Geden. In: Ber. Wissenschaftsgesch. 40 (2), S. 175–185. DOI: 10.1002/bewi.201701848

Discussion on climate policy, research and CE. „Paul N. Edwards is a historian of science and technology who has worked at the intersection of politics, computers and knowledge infrastructures. In his recent book, A Vast Machine (2010), he has described the emergence of the global knowledge infrastructures of climate science in the historical context. He is actively involved in the debates on the Anthropocene – as an educator as well as a writer. Oliver Geden has a background in anthropology and is head of the European Union research division of the German Institute for International and Security Affairs (Stiftung für Wissenschaft und Politik, SWP), one of Europe’s largest foreign policy think tanks.“

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Lauvset, Siv K.; et al. (2017): Climate engineering and the ocean. Effects on biogeochemistry and primary production

Lauvset, Siv K.; Tjiputra, Jerry; Muri, Helene (2017): Climate engineering and the ocean. Effects on biogeochemistry and primary production. In: Biogeosciences Discuss., S. 1–36. DOI: 10.5194/bg-2017-235

Here we use an Earth System Model with interactive biogeochemistry to project future ocean biogeochemistry impacts from large-scale deployment of three different radiation management (RM) climate engineering (also known as geoengineering) methods: stratospheric aerosol injection (SAI), marine sky brightening (MSB), and cirrus cloud thinning (CCT). We apply RM such that the change in radiative forcing in the RCP8.5 emission scenario is reduced to the change in radiative forcing in the RCP4.5 scenario. The resulting global mean sea surface temperatures in the RM experiments are comparable to those in RCP4.5, but there are regional differences.

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