Unqualified, "the IPCC report" is often used to mean the Working Group I report, which covers the basic science of climate change.
Contributing authors prepare text, graphs or data for inclusion by the lead authors.
Authors for the IPCC reports are chosen from a list of researchers prepared by governments and participating organisations, and by the Working Group/Task Force Bureaux, as well as other experts known through their published work.
The organisation is required to comply with the Financial Regulations and Rules of the WMO.
as well as a number of special reports on particular topics.
Lead authors of IPCC reports assess the available information about climate change based on published sources.
Each subsequent IPCC report notes areas where the science has improved since the previous report and also notes areas where further research is required.
The coordinating lead authors are responsible for assembling the contributions of the other authors, ensuring that they meet stylistic and formatting requirements, and reporting to the Working Group chairs.
Lead authors are responsible for writing sections of chapters.
Participation of delegates with appropriate expertise is encouraged.