February 2 World Wetland Day February 28 National Science Day March 21 World Forestry Day March 22 World Water Day March 23 World Meteorological Day April 7 World Health Day April 18 World Heritage Day April 22 Earth Day May 31 Anti Tobacco Day June 5 World Environment Day July 11 World Population Day September 16 World Ozone Day September 28 Green Consumer Day October 3 World Habitat Day October 1-7 World Wildlife Week October 4 World Animal Welfare Day October 13 International Day for Natural Disaster Reduction November 14 Children’s Day December 2 Bhopal Tragedy Day