6.
Freiburg
You are Freiburg, community-led and eco focused. You believe in local energy cooperatives, green roofs, and neighbourhood driven sustainability. You favour grassroots action, practical low-tech solutions, and strong civic engagement. The world's most sustainable city and most people have never heard of it.You get this result because your values are specific, considered and ahead of the curve. Freiburg in Germany has car-free residential districts, the highest cycling rate of any city its size, and has been solar-powered since the 1980s. It proves you don't need to be a megacity to lead the world. Fast fact: Freiburg's Vauban district was built entirely around people not cars. Residents voted to ban parking from their streets.