@rahulkazi dear You have explained very well because of this global warming we are facing many problems in this world especially in this world starting from eco system to earth balance .Now in the face of disaster. So day by day we feel warmth and our human activity is responsible for it.To modernize the lifestyle, especially to cut and destroy green spells for living. That's why we all will be aware that planting trees is the main topic of this contest. I wish you success in this contest.