1. This is a team project. I upload a file named Philadelphia project, this file is like project proposal. According this proposal you can go through that then write the part of team paper.

2. I also upload a file named Sustainability project. For now we need to write final paper. And I already highlight the part I need to write on. And we also already choose Polluters Pay principle for sustainable principle. For the instruction of paper please see the file. There said how should write this paper. Thank you

3. About the sources, please use article of online, teacher can check it. Please don’t use book.

4. There need subtitle, let teacher know when I changed topics. Thank you writer!!!! Have a good day.