Deltas are complex environments that consist of a patchwork of different ecosystem types and land uses. Perspectives and interests of stakeholders are equally diverse. We help integrate knowledge about ecosystem values and local risks and solutions into planning processes and investment decisions. Our delta initiatives focus on the development of integrated approaches to manage water, nature and economic development in disaster-prone regions and countries. Deltas in which we work include the Rufiji, Tana, Senegal and the Inner Niger.