1. ‘Opening up’ climate engineering assessment Dr. Rob Bellamy Climate Geoengineering Governance Project, Institute for Science, Innovation and Society, University of Oxford

2. ‘Closing down’ assessment Bellamy et al. (2012) Contextual isolation Post-normal science Analytic- deliberative Low reflexivity Narrow framings

3. The Royal Society case 4 technical criteria 2 privileged But, 6 permutations AFF/SAI Uncertainty Bellamy (2013)

4. ‘Opening up’ assessment Bellamy et al. (2013); Bellamy et al. (accepted) Assessment needs: context, diversity, reflexivity Deliberative Mapping: an analytic-deliberative method that supports responsible innovation 2 strands, a multi-criteria approach (Mapping the Landscape of Climate Engineering, Thursday 09:00)

5. Criteria development Bellamy et al. (2013); Bellamy et al. (accepted) Expanded criteria range Expanded criteria depth 80 unique criteria 39 criteria subgroups 9 criteria groups

6. Option performance Bellamy et al. (2013); Bellamy et al. (accepted) Uncertainty and variability Mitigation options outperform climate engineering ‘High’, ‘middle’ and ‘low’ performing options Some ruled out on principle

7. Conclusions and recommendations A reflective and reflexive framework for assessing climate engineering and other options for tackling climate change A radically different view of option performance: climate engineering proposals are outperformed by mitigation alternatives, with stratospheric aerosol injection performing particularly poorly Future assessments should continue to ‘open up’ to diversity and reflexivity Bellamy et al. (2013); Bellamy et al. (accepted); Bellamy et al. (2014)

8. References Bellamy, R., Chilvers, J., Vaughan, N. and Lenton, T. (2013): ‘Opening up’ geoengineering appraisal: Multi-Criteria Mapping of options for tackling climate change. Global Environmental Change, 23, 926 – 937. Bellamy, R., Chilvers, J., Vaughan, N. and Lenton, T. (2012): A review of climate geoengineering appraisals. WIREs Climate Change, 3, 597 – 615. Bellamy, R., Chilvers, J. and Vaughan, N. (accepted): Deliberative Mapping of options for tackling climate change: citizens and specialists ‘open up’ appraisal of geoengineering. Public Understanding of Science. Bellamy, R. (2014): Beyond climate control: ‘opening up’ propositions for geoengineering governance. Climate Geoengineering Governance Project Working Paper 11. Bellamy, R. (2013): Framing geoengineering assessment. Opinion Article, Geoengineering Our Climate Working Paper and Opinion Article Series. Available at: http://wp.me/p2zsRk-9H