CO₂-removal News

Shift Magazine: Geoengineering: A Techno-Fix Solution for the Climate?

„Geoengineering ignores a message to which the medical profession has long adhered, and which seems quite relevant in this case: “First, do no harm.” In a complex adaptive system, it is almost certain that unintended consequences will result from the application of any technological fix, and the evidence suggests that these consequences will be devastating for many; we simply do not have the control over the climate that techno-optimists would like to believe we have.“

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Jones, A. C.; et al. (2015): Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection

Jones, A. C.; Haywood, J. M.; Jones, A. (2015): Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection. In Atmos. Chem. Phys. Discuss. 15 (21), pp.[nbsp]30043–30079. DOI: 10.5194/acpd-15-30043-2015

In this paper, we examine the potential climatic effects of geoengineering by sulfate, black carbon and titania injection against a baseline RCP8.5 scenario. We use the HadGEM2-CCS model to simulate scenarios in which the top-of-the-atmosphere radiative imbalance due to rising greenhouse gas concentrations is offset by sufficient aerosol injection throughout the 2020–2100 period. We find that the global-mean temperature is effectively maintained at historical levels for the entirety of the period for all 3 aerosol-injection scenarios, though there are a wide range of side-effects which are discussed in detail.

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Djojodihardjo, Harijono (2015): Climate change creativity for cirrus clouds and contrails control

Djojodihardjo, Harijono (2015): Climate change creativity for cirrus clouds and contrails control. In : International Conference on Space Science and Communication (IconSpace). Langkawi, Malaysia, pp.[nbsp]503–508.

„Cirrus ice clouds formed normally in the upper troposphere and contrails, shed by aircraft, impact climate and global warming due to prevailing cirrus clouds ice water content and crystal size. Contrail cirrus impact on climate change also comprises their influence on water vapor in the higher troposphere layer, which alter the infrared heat emission. The effect of commercial flights to climate change is of serious concern to the environmental conservation and climate change mitigation efforts. Therefore, it is imperative that the physical characteristics of cirrus clouds, contrails and their interactions be understood to devise anthropogenic solutions.“

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Moore, Nigel; et al. (2015): Climate Engineering: Early Reflections on a Complex Conversation

Moore, Nigel; Benmazhar, Hajar; Brent, Kerryn; Du, Haomiao; Iese, Viliamu; Kone, Salif et al. (2015): Climate Engineering: Early Reflections on a Complex Conversation. In Climate Law 5 (2-4), pp.[nbsp]295–301. DOI: 10.1163/18786561-00504007[nbsp]

„This is a background account and formal statement prepared by participants in the Institute for Advanced Sustainability Studies’ Climate Engineering Summer Course, held between 2 and 17 August 2014 in Potsdam, Germany.“

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Payne, Cymie R.; et al. (2015): Public Participation and Norm Formation for Risky Technology: Adaptive Governance of Solar-Radiation Management

Payne, Cymie R.; Shwom, Rachael; Heaton, Samantha (2015): Public Participation and Norm Formation for Risky Technology: Adaptive Governance of Solar-Radiation Management. In Climate Law 5 (2-4), pp.[nbsp]210–251. DOI: 10.1163/18786561-00504005[nbsp]

„We analyse the dimensions of public participation and norm-formation mechanisms of current SRM-related legal regimes and governance proposals. We find that there is a need for the social sciences, including legal and governance scholars, to engage with the theoretical and pragmatic challenges of engaging diverse and vulnerable publics fairly and efficiently.“

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Reynolds, Jesse (2015): An Economic Analysis of Liability and Compensation for Harm from Large-Scale Field Research in Solar Climate Engineering

Reynolds, Jesse (2015): An Economic Analysis of Liability and Compensation for Harm from Large-Scale Field Research in Solar Climate Engineering. In Climate Law 5 (2-4), pp.[nbsp]182–209. DOI: 10.1163/18786561-00504004[nbsp]

„This article offers an economic analysis of the possible interrelated roles of rules, liability, and compensation in the future international regulation of large-scale field research in solar climate engineering. Notably, the benefits, risks, and incentives of climate-engineering research are unlike typical high-risk activities.“

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