Established by the United Nations General Assembly in 1972, WED marks the first meeting of the United Nations Conference on the Human Environment, in Stockholm June 5-16 1972.

The 2011 theme, 'Forests: Nature at Your Service', underscores the intrinsic link between quality of life and the health of forests and forest ecosystems, while also supporting the 2011 UN International Year of Forests.

Thousands of events will be taking place around the globe, emphasizing how individual actions have exponential impact, with activities ranging from school tree-planting drives to community clean-ups, car-free days, photo competitions on forests, bird-watching trips, city park clean-up initiatives, exhibits, green petitions, nationwide green campaigns and much more.

Anyone can register an event on the WED website. Each of these individual actions, when taken collectively, will go a long way to securing important forests services for generations to come.