Hhhh[]
- ay - February 2
- UN paani daytWater - March 22
- UN World Meteorological Day - March 23
- National Wildlife Week - March 18-24
- UN Earth Day - April 22nd
- Arbor Day - Last Friday in April (each state also has its own observation based on best tree planting time)
- International Migratory Bird Day - May 3
- International Day for Biological Diversity (World Biodiversity Day) - May 22
- Bike-to-Work Day - Third Friday in May
- UN World Environment Day - June 5
- UN World Day to Combat Desertification and Drought - June 17
- UN World Population Day - July 11
- Car Free Day - September 16
- International Day for the Preservation of the Ozone Layer - September 16
- UN World Habitat Day - first Monday in October
- International Day for Natural Disaster Reduction - second Wednesday in October
- International Day for Preventing the Exploitation of the Environment in War and Armed Conflict - November 6
- International Mountain Day - December 11
- Ozone Action Day - at certain times during the summer months
- Save our planet day (08/08)