Forget the shiny renderings—our path to climate-ready cities starts with what already stands. We talked with architect and preservationist Carl Elefante, author of Going for Zero: Decarbonizing the Built Environment on the Path to Our Urban Future, to explore how City 3.0 can emerge by reusing buildings, redesigning streets, and resetting our standards of care. Carl breaks down Modern City 1.0 and 2.0, then lays out a hopeful, practical framework for what comes next: reconnecting with communi...