The publication of the Working Group II (WGII) Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) is a significant occasion for this journal, marking the international impact of the articles that appear in it and setting an agenda for future research for those who read it. The report includes a large number of authors and citations associated with Global Environmental Change: Human and Policy Dimensions. Two chapters, for example, have more than 25 references to research published in the journal.