opinion & comment risk in many different contexts (including science through the working group reports David Viner* is at Mott MacDonald, cultural, geographical and political), where and yet, the forthcoming Synthesis Report Demeter House, Station Road, Cambridge flexibility through use of cost–benefit would benefit significantly from incorporation CB1 2RS, UK. Candice Howarth is at the Global analyses is a standard practice. This process of practitioner experience of climate Sustainability Institute, Anglia Ruskin University, would benefit the IPCC WGII by widening solutions implementation. Co-production Cambridge CB1 1PT, UK. the pool of research and practical solutions of knowledge, across academic, political and *e-mail:
[email protected] covered, making the reviews more relevant practitioner communities, would frame, to decision-makers and by incorporation of structure and deliver climate action. Such a References 1. http://go.nature.com/H9a8Nq more transparent language and terminology process will ensure that future IPCC reports 2. Coumou, D. & Rahmstorf, S. Nature Clim. Change (such as climate change resilience) in are more up-to-date, robust and complete 2, 491–496 (2012). future assessments. in their analysis and that the climate change 3. http://go.nature.com/DRhXIx 4. Conway, D. & Mustelin, J. Nature Clim. Change 4, 339–342 (2014). The IPCC process provides the most resilience solutions proposed incorporate the 5. Pidgeon, N. & Fischhoff, B. Nature Clim. Change compelling account of evidence about climate most practically viable research. ❐ 1, 35–41 (2011). COMMENTARY: Betting on negative emissions Sabine Fuss, Josep G. Canadell, Glen P. Peters, Massimo Tavoni, Robbie M. Andrew, Philippe Ciais, Robert B. Jackson, Chris D.