SUMMARYThere is increasing emphasis on the need for effective ways of sharing knowledge to enhance environmental management and sustainability. Knowledge exchange (KE) are processes that generate, share and/or use knowledge through various methods appropriate to the context, purpose, and participants involved. KE includes concepts such as sharing, generation, coproduction, comanagement, and brokerage of knowledge. This paper elicits the expert knowledge of academics involved in research and practice of KE from different disciplines and backgrounds to review research themes, identify gaps and questions, and develop a research agenda for furthering understanding about KE. Results include 80 research questions prefaced by a review of research themes. Key conclusions are: (1) there is a diverse range of questions relating to KE that require attention; (2) there is a particular need for research on understanding the process of KE and how KE can be evaluated; and (3) given the strong interdependency of research questions, an integrated approach to understanding KE is required. To improve understanding of KE, action research methodologies and embedding evaluation as a normal part of KE research and practice need to be encouraged. This will foster more adaptive approaches to learning about KE and enhance effectiveness of environmental management.

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Strategic environmental assessment (SEA) is seen as an important tool for integrating the environment into decision‐making, e.g. at plan and programme levels where it is being used with increasing regularity. At the policy and most strategic decision levels, however, it is less clear how SEA can best be used or what methodologies are appropriate in what are inevitably highly politicized contexts. This paper reports on a study carried out for the European Commission to review the mechanisms of integration at strategic decision levels and to examine the role of SEA in helping to achieve better integration. This was undertaken by first reviewing integration and SEA in all EU member states and in a range of other countries and international financing organizations, and then analysing in detail 20 SEA and integration case studies at various strategic decision levels, primarily policy and plan levels. What is clear is that SEA at the most strategic level needs to be flexible in relating to the policy‐making process, but can bring significant advantages by providing a more systematic approach to the consideration of environmental issues. Existing institutional mechanisms may already provide elements of SEA that can be harnessed together in a more systematic process. At the most strategic levels qualitative, participation and communication processes become much more important than technical methodologies. SEA should be seen as complementary to the newly emerging tool of sustainability appraisal, although the exact relationship will depend upon the preferred interpretation of sustainable development. Copyright © 2003 John Wiley & Sons, Ltd. and ERP Environment.