Buildings are responsible for 38% of all global CO2 emissions: the responsibility of architectural educators to prepare future architects for this reality demands radical action. Considering the tendency of architectural practice and education to pursue an abstractive relationship to the non-human environment, this chapter explores a lineage of three first-wave architectural ecopedagogies: Arcosanti, the Women’s School of Planning and Architecture, and the Centre for Alternative Technology in Wales. It uses these three very different endeavours to speculate about the need for radical responses to the climate emergency and about the challenges that will be faced by emergent second-wave architectural ecopedagogies.