World earth day is celebrated annually on 5th June
World Environment Day was celebrated for the first time in 1974
The main aim of the day is to create awareness among people about the importance of nature and how we can prevent and conserve them
Environment Day emphasize on the ways through which we can conserve our environement
Several events are organised on this day by the United Nations Environment Programme
This year's world environment theme is set as 'only one earth'
On this occassion US decade of Ecosytem Restoration was also launched
On this day people are also encouraged to plant new trees and also to opt for other ways through which we can preserve nature.