Here are some links to help you get started on your planning!
http://www.bbc.com/future/story/20120503-sustainable-cities-on-the-rise
https://www.ecowatch.com/top-10-greenest-cities-in-the-world-1881963132.html
https://www.usdn.org/public/page/13/CNCA
https://en.wikipedia.org/wiki/Dongtan
https://en.wikipedia.org/wiki/Masdar_City
https://www.usdn.org/public/page/13/CNCA
