UN International Year 2017The United Nations (UN) has declared the year 2017 as:2017 is the UN International Year of Sustainable Tourism for Development.©bigstockphoto.com/Fabio LamannaInternational Year of Sustainable Tourism for Development. Many countries take part in the global and local events to promote the UN years.UN International Year 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 UN Year Index