“Whenever a car drives a Kilometer, society pays 89 cents. In comparison, the bike has the best cost-benefit factor of all means of transport: Due to its positive health effect, society gains 26 cents per km” From „copenhagenize“ by M. Colville-Anderson.

John Todd

John Todd (born 1939) is a biologist working in the general field of ecological design. He addresses problems of food production and wastewater processing by using ecosystems technologies that incorporate plants, animals and bacteria. https://en.wikipedia.org/wiki/John_Todd_(Canadian_biologist) https://en.wikipedia.org/wiki/Living_machine Dr. John H Todd on Planetary Healing & Ecological Design John Todd – The Ecological Design Revolution | Bioneers: