Biosphere Tourism is a standard by the Responsible Tourism Institute (RTI), an international organization that promotes, for more than 20 years, responsible tourism at an international level. For this, it has a Memorandum of Understanding with UNESCO, is a member of the UNWTO and promotes sustainable tourism on all fronts. Through the Biosphere brand, the RTI promotes Sustainable Development by measuring the contribution of tourism to the 17 Sustainable Development Goals (SDG) of the United Nations and the indications of the Paris Agreement against Climate Change.