The Fifth Assessment Report (AR5) of the United Nations Intergovernmental Panel on Climate Change (IPCC) will be the fifth in a series of such reports. The IPCC was established by the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) to assess scientific, technical and socio-economic information concerning climate change, its potential effects and options for adaptation and mitigation.
The Fifth Assessment Report is now under way and is expected to be finalized in 2014. As has been the case in the past, the outline of the AR5 will be developed through a scoping process which involves climate change experts from all relevant disciplines and users of IPCC reports, in particular representatives from governments. Governments and organizations involved in the Fourth Assessment Report were asked to submit comments and observations in writing with the submissions analysed by the panel. The report will be delivered in stages, starting with Working Group I’s report on the physical science basis, based on 9,200 peer-reviewed studies. The first document released was Working Group I’s summary for policy makers on 27 September 2013. The second document released was the summary for policy makers of Working Group 2’s report, entitled “Impacts, Adaptation, and Vulnerability,” on March 31, 2014.