Anthropogenic climate change has presented architectural history/theory with a formidable challenge. In wealthy nations, the building sector has been one of the drivers of climate change. Around the globe architects have responded by experimenting with new forms and materials, alternative kinds of urbanism, and ambitious forms of regional planning. Architectural history has been slower to respond: engaging with this scale-defying paradigmatic shift requires us to question the autonomy of architecture, the social costs of its reliance on fossil fuels, issues of materiality and scale, the relation to other species, the urban consequences of climate change (sinking cities, city-wide slums, and a rapidly escalating number of camps for climate refugees). To produce a truly global, self-reflexive, and non-Eurocentric theory demands as well, a transnational collaboration with other fields. The goal of this seminar is to advance this agenda.