can a tiny little dad change something we think so, listen to this, there are millions of hotel rooms in the world every year, more than eight hundred million people wake up to a new day in a hotel bed on this fragile planet. these are tells use huge amount of energy for heating and lighting. they use chemicals for cleaning, and every day times of food is waste. a tiny reduction would make a significant impact on the environment, but as long as visitors only raise their state based on luxury articles and plentiful this at the hotel, that's not going to speaking of ratings. there's really just one place hotel owners would do almost anything for tap position, trip advisor, dot com. and right now, these are the most important criteria to strive for location, sleep, quality, rooms, service value and cleanness. dear trip adviser, we are really missing something here. how about adding sustainability as a rating choice, then hotels have to rethink how to stay on top of your list. you actually have the power to affect how hotels operate. one small dot would mean that every hotel in the world have to consider themselves and slippers, your energy use, food waste and social responsibility. and we, their guests, will be able to raise their effort. it would actually force them to care more about sustainable solutions. small acts multiply by millions can actually transform the world. hotel guests join our mission to out the most important criteria. it can make a huge difference sign up for sustainability at dear trip advisor that call.