"in 1800, 3% of humans lived in cities. by 2050, over 2/3 of us will. we are becoming an urban species, and this trend is going to change our political, economic, and environmental policies."19.20.21 is a new multi-year research project that's exploring the phenomenon of the "supercity." specifically, it will examine 19 cities with 20 million people in the 21st century.
img {wesley willis}
title: {phil elvrum}
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