the GreenLeaders Program by Tripadvisor
TripAdvisor launched the GreenLeaders Program to help eco business get the recognition they deserve and travellers plan more responsible trips. So far this is only for US-based hotels and B&Bs but we hope it will be global soon. Check TripAdvisor’s survey guide to see how to green your lodging business. Read more on Sustainable Futures and on responsibletravel.com.
http://green.tripadvisor.com/survey/guide