CO₂-removal News

Peer-reviewed Publications

Schäfer, Stefan; Low, Sean (2014): Asilomar moments: formative framings in recombinant DNA and solar climate engineering research

Schäfer, Stefan; Low, Sean (2014): Asilomar moments: formative framings in recombinant DNA and solar climate engineering research. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0064.

„We examine the claim that in governance for solar climate engineering research, and especially field tests, there is no need for external governance beyond existing mechanisms such as peer review and environmental impact assessments that aim to assess technically defined risks to the physical environment. By drawing on the historical debate on recombinant DNA research, we show that defining risks is not a technical question but a complex process of narrative formation.“

Link

#
Peer-reviewed Publications

Corner, Adam; Pidgeon, Nick (2014): Geoengineering, climate change scepticism and the ‘moral hazard’ argument: an experimental study of UK public perceptions

Corner, Adam; Pidgeon, Nick (2014): Geoengineering, climate change scepticism and the ‘moral hazard’ argument: an experimental study of UK public perceptions. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0063.

„In this paper, we describe an online experiment with a representative sample of the UK public, in which participants read one of two arguments (either endorsing or rejecting the idea that geoengineering poses a moral hazard). The argument endorsing the idea of geoengineering as a moral hazard was perceived as more convincing overall.“

Link

#
Peer-reviewed Publications

Morrow, David R. (2014): Ethical aspects of the mitigation obstruction argument against climate engineering research

Morrow, David R. (2014): Ethical aspects of the mitigation obstruction argument against climate engineering research. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0062.

„Why would it be a bad thing if climate engineering research obstructed mitigation? If climate engineering promises to be effective enough, it might justify some reduction in mitigation. Climate policy portfolios involving sufficiently large or poorly planned reductions in mitigation, however, could lead to an outcome that would be worse than the portfolio that would be chosen in the absence of further climate engineering research.“

Link

#
Peer-reviewed Publications

Parker, Andy (2014): Governing solar geoengineering research as it leaves the laboratory

Parker, Andy (2014): Governing solar geoengineering research as it leaves the laboratory. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0173.

„As a piece of pragmatic policy analysis, this paper explores the practicalities and implications of demands for ‘governance before research’. It concludes that ‘governance before research’ is a desirable goal, but that a delay in experimentation—a moratorium—would probably be an ineffective and counterproductive way to achieve it.“

Link

#
Peer-reviewed Publications

Keith, David W.; et al. (2014): Field experiments on solar geoengineering: report of a workshop exploring a representative research portfolio

Keith, David W.; Duren, Riley; MacMartin, Douglas G. (2014): Field experiments on solar geoengineering: report of a workshop exploring a representative research portfolio. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.017.

„We summarize a portfolio of possible field experiments on solar radiation management (SRM) and related technologies. The portfolio is intended to support analysis of potential field research related to SRM including discussions about the overall merit and risk of such research as well as mechanisms for governing such research and assessments of observational needs.“

Link

#
Peer-reviewed Publications

Storelvmo, T.; et al. (2014): Cirrus cloud seeding: a climate engineering mechanism with reduced side effects?

Storelvmo, T.; Boos, W. R.; Herger, N. (2014): Cirrus cloud seeding: a climate engineering mechanism with reduced side effects? In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0116.

„Here, we present a global modelling study of a so far understudied CEM, namely the seeding of cirrus clouds to reduce their lifetimes in the upper troposphere, and hence their greenhouse effect. Different from most CEMs, the intention of cirrus seeding is not to reduce the amount of solar radiation reaching Earth’s surface. This particular CEM rather targets the greenhouse effect, by reducing the trapping of infrared radiation by high clouds.“

Link

#
Peer-reviewed Publications

Dykema, John A.; et al. (2014): Stratospheric controlled perturbation experiment: a small-scale experiment to improve understanding of the risks of solar geoengineering

Dykema, John A.; Keith, David W.; Anderson, James G.; Weisenstein, Debra K. (2014): Stratospheric controlled perturbation experiment: a small-scale experiment to improve understanding of the risks of solar geoengineering. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0059.

„This experiment—provisionally titled the stratospheric controlled perturbation experiment—is under development and will only proceed with transparent and predominantly governmental funding and independent risk assessment. We describe the scientific and technical foundation for performing, under external oversight, small-scale experiments to quantify the risks posed by SRM to activation of halogen species and subsequent erosion of stratospheric ozone.“

Link

#
Peer-reviewed Publications

MacMartin, Douglas G.; et al. (2014): Solar geoengineering to limit the rate of temperature change

MacMartin, Douglas G.; Caldeira, Ken; Keith, David W. (2014): Solar geoengineering to limit the rate of temperature change. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0134.

„Impacts of climate change, however, are related to the rate of change as well as its magnitude. We thus describe an alternative scenario in which solar geoengineering is used only to constrain the rate of change of global mean temperature; this leads to a finite deployment period for any emissions pathway that stabilizes global mean temperature.“

Link

#
Peer-reviewed Publications

Connolly, P.; et al. (2014): Factors determining the most efficient spray distribution for marine cloud brightening

Connolly, P.; McFiggans, G. B.; Wood, R.; Tisiamis, A. (2014): Factors determining the most efficient spray distribution for marine cloud brightening. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0056.

„We investigate the sensitivity of marine cloud brightening to the properties of the added salt particle distribution using a cloud parcel model, with an aim to address the question of, ‘what is the most efficient particle size distribution that will produce a desired cooling effect?’“

Link

#
Peer-reviewed Publications

Cooper, Garry; et al. (2014): Preliminary results for salt aerosol production intended for marine cloud brightening, using effervescent spray atomization

Cooper, Garry; Foster, Jack; Galbraith, Lee; Jain, Sudhanshu; Neukermans, Armand; Ormondo, Bob (2014): Preliminary results for salt aerosol production intended for marine cloud brightening, using effervescent spray atomization. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0055.

„The large-scale production of vast numbers of suitable salt nuclei and their upward launch is one of the main technological barriers to the experimental testing of marine cloud brightening (MCB). Very promising, though not definitive, results have been obtained using an adapted version of effervescent spray atomization.“

Link

#