Paul Bogard builds his argument to persuade the audience that natural darkness should be preserved. He has built his argument throughout his life, but mainly from memories in his childhood. Paul appreciates and values natural darkness, rather than to be quick to reach for a artificial light source. Paul Bogard uses evidence to persuade the audience by using logical appeals and examples throughout his passage. He uses valid and accurate facts that help support his argument. The author also uses reasoning to develop his ideas and to connect claims and evidence, which gives the passage a conceptual flow, but also gives the readers insight of the author's thoughts and beliefs. "Ecological light pollution is like the bulldozer