A lone traveler walks through an autumn forest © Reza Esapour.

The International Day of Forests is scheduled for 21 March, and the Collaborative Partnership on Forests has chosen Forests and Water as this year's theme.

Watch the excellent video (below) that shows how vital forests are to water supply. Forests influence how and where rain falls and they filter and clean water as well. Protecting the world’s forests is key to the future of the planet...

For more info, visit: www.fao.org/forestry/international-day-of-forests and have a look at some of the highlights from International Day of Forests 2015 around the world...

San Miguel de Tucuman, Argentina.

Kids to Forests field excursion, Thailand.

Royal Highness Prince Laurent of Belgium visited Cabo Verde for the Celebration of the International Day of Forests at Serra Malagueta, Cape Verde.

Tree-planting day by Woodmark, United Kingdom.

Native tree-planting ceremony, Santiago, Chile.

National tree planting day, Tehran (Iran).

San Miguel de Tucuman, Argentina.

*Images sourced from www.fao.org