Please note: This website was created to support the 2007 IPCC Fourth Assessment Report and much of the content is now outdated. For current IPCC information, please visit www. ipcc.ch.
The IPCC Fourth Assessment Report
In addition to key excerpts from the IPCC reports, this website offers academic and journalistic resources to help journalists localize their coverage of the four IPCC reports being issued in 2007, including regional and state resources and contact information for scientists. Recordings of regional briefings with scientists held April 2-4, 2007, and a teleconference with Working Group III authors held on May 4, 2007, are also posted.
The IPCC's Fourth Assessment Report (AR4) is a series of four reports being released in 2007, which follows earlier IPCC Assessment Reports in 1990, 1995, and 2001. Assessment Reports express the world scientific community's updated understanding of global warming, based on research conducted since the previous report. The IPCC was established by the World Meteorological Organization and United Nations Environment Programme and represents the consensus science position on climate change, directly engaging more than 2,500 scientists from more than 130 nations.
The first three parts of the 2007 report summarize the findings of three IPCC working groups. The fourth part will synthesize the three working groups' findings in more detail. The four parts are:
- Working Group I's "Climate Change 2007: The Physical Science Basis," issued on February 2 in Paris.
- Working Group II's "Climate Change 2007: Impacts, Adaptation and Vulnerability," issued on April 6 in Brussels.
- Working Group III's "Climate Change 2007: Mitigation of Climate Change," issued on May 4 in Bangkok.
- The entire IPCC's "Climate Change 2007: Synthesis Report," issued on Nov. 17 in Valencia, Spain.