This story was co-published with Gizmodo. It is also part of Record High, a Grist series examining extreme heat and its impact on how — and where — we live. Cities are hot. When you cover the ground ...

Four years ago, Paris embraced the idea of the 15-minute city—the concept that you should be able to live a short walk or bike ride from work, school, stores, and other aspects of daily life. Since ...