When the Water Cycle Breaks Density's Promise
The pitch was clean. Density reduces car trips. Density makes transit viable. Density cuts land consumption. For two decades, planners repeated it like a liturgy. But liturgy does not make rain. Now the rain comes in pulses—weeks of drought followed by a day that drowns the basement units. Aquifers that supported a thousand units per hectare are dropping a meter a year. And nobody wrote a chapter in the Smart Growth Manual about what happens when the water cycle stops cooperating. The numbers that once made density ethical—per capita carbon, infrastructure cost per household—start to look like accounting tricks when the same dense block faces simultaneous flooding and water shortage. The Decision Frame: Who Chooses, and By When? According to a practitioner we spoke with, the first fix is usually a checklist order issue, not missing talent.