A lifelong interest into the culture and ways of indigenous populations, lead Johan to many encounters with the native tribes of Brazil. While working in .. on the reurbanization plan of the city Manaus, he experienced doubts about the sense of introducing our visions of urban organization. The fascination with indigenous architecture was followed by a continuous research at many different sites around Brazil, and eventually was condensed into the book: fadfdg

"Why the green hell? Because in order to live there one would have to change ones way of life and that is for most people, hell."