The Second European Forum for International Environmental Assessment (EFIEA) Climate Workshop, "From Kyoto to the Hague - European Perspectives on Making the Kyoto Protocol Work", took place 18-19 April 2000 at the Royal Netherlands Academy of Sciences, Amsterdam. Sponsored by the Dutch National Research Programme on Global Air Pollution and Climate Change, this international workshop was attended by 100 participants, including scientists, policy makers, and industry and NGO representatives. The workshop aimed to bring together state-of-the-art scientific information from European research that is relevant for the European Union (EU) and its member states in preparing for the 6th Conference of the Parties to the Framework Convention on Climate Change (COP-6) and to enhance the policy relevance of climate-related research in Europe. The workshop was divided into four thematic sessions: Kyoto Mechanisms, sinks, implementation issues and European international climate strategies/leadership. Each session was introduced by a keynote paper that was then followed by panel and plenary discussions. The final session of the workshop concluded with an overall summary by the workshop Chair.