This chapter is dedicated to those students and scientists who wish to increase the societal impact of their research. We believe that many researchers who read this book have an interest in protecting, restoring, or regenerating the aquatic habitats they study, beyond their pure scientific interest in understanding their structure and function. This chapter provides inspiration for such activities. We start by reflecting on the roles of scientists in society and how inter- and transdisciplinary research approaches can help societal change. We then share experiences from three inter- and transdisciplinary projects related to pesticides, urban aquatic ecosystems, and water scarcity. Furthermore, we present rivers as platforms for nature education and discuss the potential of science–policy platforms such as IPBES (Intergovernmental Platform for Biodiversity and Ecosystem Services). Although challenges remain, sustainability science, where inter- and transdisciplinary cooperation is the rule rather than the exception, is a fast-developing field offering a bouquet of methods and tools to increase societal impact.