In recent years, conspiracy talk about a 15-minute city abounds. But the idea dates to at least 2008 and integrates century-old urban design.
EVs are better than traditional vehicles, but they have hidden costs of their own.
Sources of urban heat below ground, like trains and pipes, are causing land deformation and subsidence that can threaten Chicago's buildings.
The Sun-Ways installation relies on a train that rolls out a stream of solar panels to deliver renewable energy from between the rails.
School streets and play streets are also an important implication the new civic activities.
As Europe considers France's controversial ban on short flights, a new study from Germany details the potential positives and pitfalls.