Environment is everything around us and that is the reason why it is important to take care of it. Today it is more recognized as it ever was. Industries change their business operations to sustainable development. Tourism and hotel industry are no exception. Sustainable tourism takes care of the environment, destination but also of income; the stress lies on long-term business. Following the touristic trends from today, more and more hotels adopt green technologies and environment friendly business. Many world organizations and institutions guide the hotels and award them with a certificate for their eco-business. These certificates are important for the hotels because they do not only differentiate them from other hotels but also attract environmentally conscious guests. Hotel industry is one of the most developed industries in the world and its influence on the environment is significant. Hotels are big consumers of water and energy sources and large part of that consumption is unused. Also, a large quantity of waste material is made e.g. food waste, paper waste, plastic waste etc. Thanks to the technological progress and green management, the negative results can turn into positive ones. This kind of business could need high initial investments but with time they will become profitable. Hotels not only make profit from it but also take care of the environment and make place for long-term successful business. Positive results are possible; even the smallest change is important. There are hotels across the world which only use renewable energy sources and make no waste material because they recycle it. Changes are necessary because they bring better living conditions with them.