This 336 page report on smart city business opportunities explains why they now graduate from trivial to heroic. Infograms interpret pollution, desertification, sea level rise, appropriate action such as food, water, energy independence, resilience, conservation, zero-emission materials and electrification. Understand required smart multifunctional materials, infrastructure, ultra-high-performance concretes, VTOL air taxis, robot shuttles, dispersed electricity production/storage, indoor food production, ICT, IOT, 6G, sensors, 25 new roadmaps forecasts 2022-2042.