Although it's no longer a rare to find on a hotel bed a sign asking the guest to reuse his/her towel or to accept having sheets changed once every three days rather than once a day, many people still wonder if tourism is truly an environmentally-friendly industry. Due to past mistakes, the public often is cynical about tourism and it isn't unusual to hear people wondering out loud if things like changing sheets once every three days isn't more about saving hotels money then about saving the planet... keep reading