World Environment Day is observed across the world to raise awareness about the environment and the importance of conserving the planet.
World Environment Day is observed on June 5. Countries across the world mark this day to raise awareness about the environment and the importance of conserving the planet.
The theme this year is 'Celebrate Biodiversity'. It is said that World Environment Day is the biggest annual event organised by the United Nations.
In 1972, the United Nations held a conference and it is here that the decision for an annual celebration of a day dedicated to the environment was taken. Two years later in 1974, the first World Environment Day was celebrated with the theme 'Only One Earth'.
This year, the day will be hosted by Colombia in partnership with Germany.