The United Nations proclaimed May 22 The International Day for Biological Diversity (IDB) to increase understanding and awareness of biodiversity issues. When first created by the Second Committee of the UN General Assembly in late 1993, 29 December (the date of entry into force of the Convention of Biological Diversity), was designated The International Day for Biological Diversity. In December 2000, the UN General Assembly adopted 22 May as IDB, to commemorate the adoption of the text of the Convention on 22 May 1992 by the Nairobi Final Act of the Conference for the Adoption of the Agreed Text of the Convention on Biological Diversity. This was partly done because it was difficult for many countries to plan and carry out suitable celebrations for the date of 29 December, given the number of holidays that coincide around that time of year.
The theme for 2017 is "Biodiversity and Sustainable Tourism", which has been chosen to coincide with the observance of 2017 as the International Year of Sustainable Tourism for Development.
Celebration of the IDB under this theme provides an opportunity to raise awareness and action towards the important contribution of sustainable tourism both to economic growth and to the conservation and sustainable use of biodiversity. Furthermore, the theme also provides a unique opportunity to contribute to ongoing initiatives such as the Sustainable Tourism Programme of the 10-Year Framework of Programmes on Sustainable Consumption and Production Patterns and to promote the CBD Guidelines on Biodiversity and Tourism Development.