High Quality Content by WIKIPEDIA articles! 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.