This issue of Past Global Changes Magazine celebrates the 30th anniversary of the Paleoclimate Modelling Intercomparison Project (PMIP). PMIP started the same year that PAGES was formed and has been hugely influential in focusing the paleoclimate modeling and data communities on key aspects of past change and the link to future climate change. This issue presents the story of its formation, some of the key results and impact of the research, and a discussion of the very latest results and future initiatives.