How can international agreement on certain problems of global change be reached in a better manner and more quickly? This section centres on the question of the extent to which certain ‘institutional designs’ or ‘institutional arrangements’ (von Prittwitz, 2000) are suited to ensuring swift and appropriate reactions to deficiencies in coping with existing problems or responses to new problems. These questions are discussed taking the example of three institutions, but also from the perspective of a generalizable arrangement that may serve as a model for future institutional designs.