The IPCC is an international body established by the United Nations Environment Programme and the World Meteorological Organization in 1988 to provide scientific information on climate change. It is made up of 194 member nations and produces assessment reports on the current scientific understanding of climate change, its causes and impacts, and future risks. Implementing the IPCC's recommendations to limit global warming through actions such as reducing fossil fuel use and carbon emissions faces challenges as it requires agreement among 194 nations and international cooperation to address risks and costs.