On 20 April 2006 the seventh Swiss Global Change Day took place in Bern. The established yearly meeting, organised by ProClim, provides a platform where the Swiss global change research community can meet. About 200 participants used the opportunity to discuss questions related to global change in a transdisciplinary manner with the invited provocators Heidi Blattmann, NZZ, Zurich, and André Stapfer, Environmental Agency, Canton Aargau. Over 50 posters illustrated the range of the research activities in Switzerland. Seven key note speakers presented new findings, highlights and challenges in the broad field of global environmental change research.