Papers of the Intergovernmental Panel on Climate Change

From the collections of Harvard Library

Curator’s Note: We are pleased to launch this new version of the Harvard Library’s IPCC collections portal. The previous version (AR4) has been expanded to include new, “born-digital” archival collections from AR5 as well as bring print collections from TAR (“AR3”) and SAR (“AR2”) to the web. As we complete the transition to the new website, additions and minor revisions will continue into the first part of October. We appreciate your patience. Many thanks to the Working Group II Technical Support Unit for its work in creating most of the archived materials and for being the Harvard ESPP Archives’ partner in bringing this portal into reality.


This portal provides access to digital records compiled and consolidated by the U.S.-hosted Working Groups and archived at the Environmental Science and Public Policy Archives (ESPPA) at the Harvard Library for the following cycles:

Refer to the IPCC Secretariat web site ( for the rules and procedures governing the process, including innovations intended to enhance openness and transparency.

To the extent possible, given evolution of the process, a uniform set of files has been captured on assessment-specific pages. Additional records—hardcopy and digital—are also part of the IPCC Collection maintained at the Environmental Science and Public Policy Archives, Harvard Library.


Jointly established by the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) in 1988, the Intergovernmental Panel on Climate Change (IPCC) prepares comprehensive and up-to-date assessments of policy-relevant scientific, technical, and socio-economic information relevant for understanding the scientific basis of climate change, potential impacts, and options for mitigation and adaptation. (More)

Research Assistance

Environmental Research Librarian George E. Clark is available for research assistance via e-mail.