TripBarometer - USA

In 2013 Tripadvisor survey results show 79% of travelers would prefer an eco friendly hotel, and 46% of European business travelers said that the green travel policies of their companies have a direct impact on their travel plans. 66% of travelers in U.S. believe their travel choices can make a difference to the environment, and more than 51% of meeting planners will hold meetings only in sustainable venues. Only 8% of the American travelers think it is easy to find a green hotels, 55% are more than skeptical about the promises and information of green practices. In UK it is even more, 67 % are skeptical, though the green travel industry has a yearly growth of 25%.

sources: http://www.tripadvisortripbarometer.com ; http://www.responsibletravel.org