With the creation of the Office of the Chief Scientist, the United Nations Environment Program (UNEP) gave science a new importance for the development and implementation of its policies and activities. Prospex helped UNEP to create a strategy for science by designing and facilitating a process of engagement between key players: eminent scientists from across the planet together with key persons from within UNEP. This interactive, participatory process allowed us to identify and agree upon the specific contributions of science to the work of UNEP. With their new strategy, science “is at the foundation of UNEP‘s work,“ said Achim Steiner, UNEP Executive Director. The new strategy indicated an emphasis on both anticipating and designing the future, on a solution-oriented approach that makes full use of UNEP‘s convening capacity.