| World Environmental Education Day | 26 January |
| World Energy Day | 14 February |
| World Energy Efficiency Day | 5 March |
| First day of spring / World Forestry Day | 21 March |
| World Water Day | 22 March |
| World Health Day | 7 April |
| Earth Day | 22 April |
| International Climate Day | 15 May |
| World Environment Day | 5 June |
| World Day for the Protection of the Ozone Layer | 16 September |
| Clean up the World | 3rd weekend in September |
| No Car Day | 22 September |
| Day Green Consumer | 28 September |
| International Day of Nature Destruction Reduction | 8 October (changeable) |
| International Day of Pedestrians | 15 October |
| World Pure Air Day | 3 November |
| Day of climate changes | 4 November |
| The Environmental Movement Day | 17 November |
