Scientific studies show that temperatures in France will rise by +4°C by 2100. Its current temperate climate will be transformed into a subtropical one. This book, published for the 3rd biennial of architecture and landscape of Île-de-France, looks southwards, to these already warmer climates, to find models for building architecture in northern latitudes today that can withstand this rising heat. The book begins by thoroughly revisiting pre-air-conditioned architecture found in warm climates through a detailed scientific analysis of 120 distinct vernacular buildings. This comprehensive analysis uncovers the various ingenious strategies these buildings utilize to remain cool and effectively resist both drought and flooding. It then explores the innovative work of approximately forty contemporary architects who are already actively working in these increasingly warmer regions to gain a deeper understanding of how their designs successfully manage heat. The book concludes with a series of thought-provoking essays discussing the future of architecture in the context of global warming, including the important roles of non-human entities and technological agents in addressing the pressing challenges faced by the built environment. With contributions of: Daniel Barber, Rob Dunn, Carolyn Steel, Eduardo Prieto, Beatriz Colomina, Lisa Heschong, Pedro Gadanho, Pierre Charbonnier, Germán Valenzuela, Gabriel Kogan, Béatrice GrenierBilingual in French & English.