Housing
Why We Need a Better 'Science of Cities'
Q&A with Planet of Cities author Shlomo Angel.
Building more resilient and prosperous cities is perhaps the grandest of the grand challenges facing the world today.
By now, virtually all urbanists know that half the world's population lives in urban areas, a figure than will likely rise to 75 percent by 2100, when 7.5 to 8.8 billion people will live in cities.