The current focus on large‐scale problems emphasizes interdisciplinary research. In this essay, I describe interdisciplinary research and the role of developmental scientists in this endeavor. The goal is to encourage greater involvement by developmental scientists in interdisciplinary research on global problems that affect the well‐being of children and youth. The involvement of developmental scientists in these efforts will increase the effectiveness of many projects, broaden the scope of research in the discipline, and provide information about the experiences of children and youth around the world. To illustrate, I describe my involvement in interdisciplinary research on water conservation and use. I conclude the essay by describing challenges and benefits of engaging in interdisciplinary research, and offer suggestions for developmental scientists interested in this role.