There are a lot of reason to choice a Eco Friendly Hotel and you need to distinguish between hotels that simply have a location in nature and those that specify what practices and monitoring they do to minimize environmental impacts and help the local economy and society.
Here there are one Article from Trip Advisor and we want to share with you.
Organizations such as Sustainable Tourism International and the International Eco-tourism Society also provide certifcation, accommodation listings and information.
Eco Tourism - Get the Truth then go! Tips from Our Eco Friendly Hotel in Patagonia