Green dates to celebrate

February
2 February: World Wetlands Day  

March
March 3: Africa Environment Day and Wangari Maathai Day 
March 22: World Water Day
23 March 2013: Earth Hour 

April
April 22: Earth Day 

May
May 11: International Migratory Bird Day
May 22: International Day for Biological Diversity (World Biodiversity Day)
May 23: World Turtle Day

June
June 5: United Nations World Environment Day 
June 8: World Oceans Day 
15 June: Global Wind Day 
June 17: UN World Day to Combat Desertification

September
September 1: International Vulture Awareness Day 
September 16: International Day for the Preservation of the Ozone Layer (Ozone Day) 
September 18: World Water Monitoring Day 
September 21: Zero Emissions Day 
September 22 : World Car Free Day  
International Coastal Cleanup (held annually in September)

October
First Monday in October: UN World Habitat Day 
Second Wednesday in October: International Day for Natural Disaster Reduction

November
November 6: International Day for Preventing the Exploitation of the Environment in War and Armed Conflict  

December
December 5: International Volunteer Day
December 11: International Mountain Day  

Other
Ecological Debt Day (Earth Overshoot Day) – dates changes each year
Forest Day - December