S6E3 ⁠— ⁠ The Tree Is the New Sewer System with Erwin van Herwijnen of New Urban Standard

October 26, 2025

I speak with Erwin van Herwijnen about why most city trees die young — and how soils, stormwater, and even spreadsheets can save them.

Recorded in the heart of Tilburg—a Dutch city that has transformed from one of Europe’s hottest heat islands into a showcase of regreening—I met arborist Erwin van Herwijnen of New Urban Standard. We stood in the City Hall square, surrounded by paving stones and a few big trees. To the casual observer, it looked like any other plaza. But Erwin smiled as he gestured underfoot: “Right here, we can handle three and a half million liters of water.”

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