Luiz Fernando do Bispo, 40, stay at a floating house made of garbage in Mare slum, Rio de Janeiro, Brazil, Jun. 13, 2007. Bispo made the floating house in a fetid canal with rubbish pulled from the otherwise beautiful Guanabara Bay, in the heart of Rio de Janeiro and transform it in a symbol of recycling.(Austral Foto/Renzo Gostoli)

Luiz Fernando do Bispo, 40, stay at a floating house made of garbage in Mare slum, Rio de Janeiro, Brazil, Jun. 13, 2007. Bispo made the floating house in a fetid canal with rubbish pulled from the otherwise beautiful Guanabara Bay, in the heart of Rio de Janeiro and transform it in a symbol of recycling.(Austral Foto/Renzo Gostoli)