The writer uses facts to persuade the people to change their energy consumption habits. It explains how each person´s action directly affects the global warming. The author uses examples and simple language so that each person understands the importance of changing simple routines and that by doing this, the change can be notorious. The writer´s strategies are effective because explains with simple and understandable vocabulary, things that we probably do not consider very important, and provide real life examples, and simple tasks that for many people are easy to fulfill. Whether the person follows the advice or not, it is just a very personal decision