(h/t John S.) I’ve previously documented changes in the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5) which were made absent any external review. This happened despite the IPCC principles stating:
Three principles governing the review should be borne in mind. First, the best possible scientific and technical advice should be included so that the IPCC Reports represent the latest scientific, technical and socio-economic findings and are as comprehensive as possible. Secondly, a wide circulation process, ensuring representation of independent experts (i.e. experts not involved in the preparation of that particular chapter) from developing and developed countries and countries with economies in transition should aim to involve as many experts as possible in the IPCC process. Thirdly, the review process should be objective, open and transparent.