Amicus Curiae Brief presented by ClientEarth 21 November 2016 "...to assess on a comprehensive, objective, open and transparent basis the scientific, technical and socio-economic information relevant to understanding the scientific basis of risk of human-induced climate change, its potential impacts and options for adaptation and mitigation. IPCC reports should be neutral with respect to policy, although they may need to deal objectively with scientific, technical and socio-economic factors relevant to the application of particular policies."55 72. The IPCC's process involves multiple stages of review, with hundreds of expert assessors critiquing the accuracy and completeness of the papers that are cited in its report. Multiple stages of review are an essential part of the IPCC process to ensure that its synthesis reports are the most comprehensive, objective and transparent assessment of the current state of knowledge of the science related to climate change. Expert scientists from every nation are involved in the drafting of IPCC reports, with each sentence being subject to significant scrutiny, debate and contestation, with input from scientists from around the world.56 73. The Synthesis Report of the AR5, released in 2014, provides the most up to date summary of the state of current scientific knowledge about the causes of climate change, as well as its effects and impacts.57 55 https://www.ipcc.ch/organization/organization_history.shtml Details of the review process can be found at https://www.ipcc.ch/news_and_events/docs/factsheets/FS_review_process.pdf 57 https://www.ipcc.ch/report/ar5/ 56 37