Some call it weeds – we call it high level of biodiversity.
The reason for a focus in ecology came from Freiburg’s history of being known as a “Green City”. After successfully protesting against the proposed Wyhl nuclear power plant in 1972, the new mission of the city was to find ways to reduce CO2 emissions.
The city of Freiburg has a problem; for 20 years now, the city’s population has grown by 1% each year, but the water treatment plant has not grown with it. Therefore a decision was made early in the planning process that would help create a plan to make better use of waste water from neighborhoods.