For those of you that don't know what it means, simply do a Google Search. But for the most part it means helping the environment. Using reusable bags, walking/biking instead of driving, doing stuff to save energy, etc. Read a few things about it and you will get it. :) Now on to the poll!
Remember you can vote for as many as you like, however, just keep in mind if you vote for all of them it defeats the purpose of voting. That being said feel free to leave a comment letting any of the contestants know what you think. Feedback is what makes them better layout makers!