today we have a difficult decision. how will be the future ? i speak it because the our "comfort" It is harmful to the environment . recently I went to Curitiba and realized that the care they have with nature is much higher than here in São Paulo. The issue of preserving nature for them is so great that the public places advantage of rain water. (It is normal flood parts of the floor, to use the water for nature) Sustainability is something quite complicated to be solved. but in Curitiba I saw that the city can be sustainable and beautiful and pleasant