On 4 April 2007 the eighth Swiss Global Change Day took place in Bern. Every year in spring ProClim-, a forum of the Swiss Academy of Sciences, organizes this event, which addresses the global change research community in Switzerland. About 300 participants took the opportunity to network and to discuss with people from related fields. About 60 posters were presented which showed the range of research activities in Switzerland. Seven key note speakers presented new findings, highlights and challenges in the broad field of global environmental change research.