How cities grew fragmented, segregated, and polluted—and why they now strive for walkability, community, and urban nature

What have our cities become, transformed into places that have separated us from what is naturally connected? How did we get to this frantic long-distance lifestyle? How did we get to less public space where cars are king with never-ending commutes, streets, avenues, boulevards, roads, and freeways? What caused nature to be relegated, at best, to a mere decorative role? Why have we lost the connection with nature that is essential to our daily regeneration? What mechanism has led us to disrupt the natural equilibrium between oxygen and CO ,...