IPCC yet to assess geoengineering

摘要

As co-chair of Working Group III of the Intergovernmental Panel on Climate Change (IPCC), I would like to clarify your misleading implication that I recommend geoengineering as an option for attaining ambitious climate targets (Nature 468, 13-14;2010).rnThe IPCC does not have a mandate to recommend or dismiss specific policies or technologies. It aims to assess all relevant climate-change mitigation options on the basis of peer-reviewed scientific literature. This assessment must be unbiased, factual and policy-relevant, without being prescriptive.