In 2018, the International Day of Forests (IDF) will address the theme, 'Forests for sustainable cities,' and will focus on how forests and trees in urban areas regulate temperature and water flows, provide nutritious foods and shelter, cleanse the air and foster community cohesion and individual well-being, among other benefits.
The UN General Assembly proclaimed 21 March the International Day of Forests in 2012. The Day celebrates and raises awareness of the importance of all types of forests. On each International Day of Forests, countries are encouraged to undertake local, national and international efforts to organize activities involving forests and trees, such as tree planting campaigns. The theme for each International Day of Forests is chosen by the Collaborative Partnership on Forests.