The Open Science Meeting (OSM) and associated Young Scientists Meeting (YSM) are the premier scientific events of Past Global Changes (PAGES). These meetings, with the theme "Global Challenges for our Common Future: a paleoscience perspective", will fully reflect PAGES' structure and themes of climate, environment and humans, the strengthening of connections between PAGES' working groups and the increasing importance of an interdisciplinary approach. More than 30 sessions are planned.