Permaculture
Hawaii: a sustainable paradise?
The state of Hawaii can be made into a sustainable paradise. It is still very far from achieving this goal, but it is on the right path. To begin with, it has a large variety of renewable energy sources, and [...]
A hospital in the U.S. runs with the gases emitted by a brewery
An engine in a hospital in Wisconsin, U.S., converts the methane gas discharged by a brewery into electricity. The gas, which used to be released to the atmosphere by City Brewing Company, is now renewed by one of the Gundersen [...]
Air conditioning from heat
Cold from heat. It’s not a new idea; anyone over 50 years old or who has visited rural areas in some countries has seen refrigerators powered by kerosene. Kerosene lights the flame, and it moves the gases that cool the [...]
Vauban, the totally sustainable village
Vauban, a town of about 5,000 inhabitants in Germany that is barely 10 years old, was built as a model of sustainability. People began to move there around 2001. It is close to the university city of Freiburg. All of [...]
