The theme for 2015 --- is how the well-being of humanity, the environment and economies ultimately depends on the responsible management of the planet’s natural resources. Evidently, people are consuming/exploiting far more natural resources than what the planet can sustainably provide.
Planet can serve the need, not the greed of the people!
To keep our environment clean, to plant trees for our healthy living and also to make citizens literate on the growing environmental issues by various modern techniques like quizzes on the environment, street-play, workshops, exhibition, science fairs etc.