„If we have put too much CO2 into the air, wouldn’t it make sense to find ways to remove it again? Well, yes: it would. But sadly it isn’t likely to be easy or cheap and, according to new research, it isn’t an adequate “solution” to the problems of climate change.“
„In his new book Atmosphere of Hope, Tim Flannery, Climate Councillor and Professorial Fellow at the Melbourne Sustainable Society Institute (and co-author of this article), argues that these strategies will be necessary to combat climate change, but cannot substitute completely for reducing emissions.“
Is there a place for geoengineering in addressing climate change? (2015) (CGG Briefing Notes, 7).
„Geoengineering should certainly not be considered a magic bullet that will make the challenges of adaptation and mitigation go away; Indeed, it is wise to always consider geoengineering in the context of mitigation and adaption; […]“
What should we expext from geoengineering research? (2015) (CGG Briefing Notes, 6).
„The general value of research on new technologies is to assess effectiveness and safety: to pare down uncertainty and reduce risks, so that we can take account of them in appropriate governance strategies and in detailed regulation for deployment. But in the case of geoengineering, the research to assess effectiveness and safety faces such technical and social uncertainties as to require governance itself, beyond the familiar institutional ethical review.“
Thamo, Tas; Pannell, David J. (2015): Challenges in developing effective policy for soil carbon sequestration. Perspectives on additionality, leakage, and permanence. In Climate Policy, pp. 1–20. DOI 10.1080/14693062.2015.1075372
„If carbon sequestration is to be a cost-effective substitute for reducing emissions then it must occur under a framework that ensures that the sequestration is additional to what would otherwise have occurred, the carbon is stored permanently, and any leakage is properly accounted for. We discuss significant challenges in meeting these requirements, including some not previously recognized. Although we focus on sequestration in soil, many of the issues covered are applicable to all types of sequestration.“
„In a move that has some environmentalists up in arms, a group of retired Silicon Valley engineers and scientists are proposing a new approach to fighting climate change. They want to brighten clouds. It’s one of the many solutions being proposed in the controversial industry of geoengineering.“
A Dutch blog article on the webinar „Approaches to Climate Intervention„.
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Craik, Neil (2015): International EIA Law and Geoengineering: Do Emerging Technologies Require Special Rules? (forthcoming).
„This article explores the adequacy of the international rules on environmental impact assessment (EIA) to contribute to geoengineering governance with a focus on three fundamental challenges. First, the near universal trigger for EIA is the likelihood of significant environmental impact, which may prove to be insufficiently precautionary in light of current risk preferences surrounding geoengineering. Second, the scope of EIA has traditionally focused narrowly on the assessment of direct physical impacts, however many of the concerns that geoengineering research raises relate to environmental and social risks associated with downstream technological implications.„
Crook, J.; Jackson, L. S.; Osprey, S. M.; Forster, P. M. (2015): A Comparison of Temperature and Precipitation Responses to Different Earth Radiation Management Geoengineering Schemes. In J. Geophys. Res. Atmos., pp. n/a-n/a. DOI 10.1002/2015JD023269
„We compare six different radiation management schemes that use surface, troposphere and stratosphere interventions in a single climate model in which we projected future climate from 2020 to 2099 based on RCP4.5. We analyze the surface air temperature responses to determine how effective the schemes are at returning temperature to its 1986-2005 climatology and analyze precipitation responses to compare side effects.“
