Persistent youth advocacy for climate action worldwide, and recent policy activity in England, UK focused on climate change and sustainability education (CCSE), provide the context for this study. Drawing on reflections and insights predominantly gathered whilst working as a geography teacher and geography teacher educator in both England and Scotland, I explore the ways in which intergenerational dialogue can support teacher educators in the context of climate change and sustainability education. This includes the ways in which initial teacher education (ITE) involves different groups (e.g., teachers, teacher educators, school students) and provides different spaces (e.g., school sites and university classrooms) which support intergenerational dialogue. I consider the ways in which intergenerational dialogue can help teacher educators engage with the spatial and temporal facets of the moral complexities of climate change and sustainability education.