Dialogue on sustainability -Hi friend, how long. -Hi girl how are you? -Fine and you? -Pretty well! -I was eating a candy, do you know where a trashcan is? -There is no one here, just ahead, throw them on the floor. -No friend, we have to throw the garbage in the trash, to help environment. -But a little candy paper won't make a difference. -Of course, this simple paper can help clog a manhole! -Really friend?I never looked that way, what can we do to make it doesn’t happen again? -We must make people aware of throwing garbage in the trash.