World Day for Glaciers
- When21 March 2027
About World Day for Glaciers
World Glacier Day is a United Nations observance marking the vital role of glaciers in the planet's water supply and climate, and the accelerating threat they face from warming. It anchors the UN's wider push to protect the world's frozen water reserves.
The next World Glacier Day is marked on 21 March with events, education and campaigns worldwide. It highlights glacier monitoring and the consequences of glacier loss for rivers, sea level and communities downstream.
Date21 Marchannual observance
MarksGlacier preservationa warning on melt
Declared bythe UNand WMO/UNESCO
FocusFrozen waterclimate impact
How to take part
Use the day to connect glacier loss with practical climate awareness:
- Read or share a clear glacier-loss explainer from a trusted climate or science source.
- Use the day in a class, workplace note or community post to explain why glaciers matter for water, sea level and mountain regions.
- Support a local climate, mountain, water or science-education activity if one is available.
- Avoid turning the day into generic nature content; keep the focus on glaciers, ice and climate impacts.