In Iceland, they rely on the elements to produce energy. Volcanoes - a little; water – a lot. There was a small revolution in the 1970s that now makes the island the world's largest producer of renewable energy.
Glasgow has developed an ambitious circular economy plan. The first experiments are in the food and beverage industry.
Destroyed by a tornado in 2007, the city of Greensburg in Kansas opted for sustainable development and ecological reconstruction.
In Australia, there’s a ready-to-live-in house with a zero ecological footprint that produces more energy than it consumes.