Focusing on four global cities – London, New York, Hong Kong, and Singapore – architect, urban designer, and TED Resident Stefan Al examines rise of global supertalls and the factors that have led to this worldwide boom. He uncovers the latest innovations in sustainable building, from skyscrapers made of wood to tree-covered buildings that promise a better urban future, but also examines the issues of wealth inequality, carbon emissions, and contagion that can accompany dense high-rise development. Featuring original architectural sketches, Supertall: How the World’s Tallest Buildings Are Reshaping Our Cities and Our Lives is both an exploration of our greatest accomplishments and a powerful argument for a more equitable way forward.