About the event
Earth Day is the world's largest environmental observance, first held in 1970 and now mobilising around a billion people across nearly 200 countries. It has become a cornerstone of the modern environmental movement and a focal point for climate action.
Key figures
First held1970environmental movement
Reach~1 billion peoplenearly 200 countries
FocusClimate & environmentglobal action
Coming years
2028
The organiser had not announced the 2028 edition as of 2026-09-03.