text: In conclusion, students should be the ones who get to choose what their educational projects are going to be about over their summer break. If they create the topic they will actually get it done knowing that their school didn't give them a boring topic to learn about. They can also go on many crazy and exciting adventures to tour and get information on anything they need. Most importantly they need to have fun because summer is about having the time of your life, but they can also learn about fun and educational topics.      Citizens in the USA , Vauban, Germany and Paris , Bogota,Colombia all have to make changes. Greenhouse affect and pollution from cars is out of proportion. Its about time to make a diffrece so greenhouse effect and pollution dont end everything.