World Day for Glaciers 2026
World Day for Glaciers on March 21 is the United Nations date for ice that stores freshwater and shapes mountain climates. Learn one solid fact, notice where your water comes from, and keep World Water Day — the next day — on its own page.
About World Day for Glaciers
History & origins
On 14 December 2022, the UN General Assembly adopted resolution A/RES/77/158 declaring 2025 the International Year of Glaciers’ Preservation and proclaiming 21 March of each year as World Day for Glaciers, to be observed starting in 2025. UNESCO and the World Meteorological Organization (WMO) were invited to facilitate implementation with governments and UN partners. The day aims to raise awareness of glaciers, snow, and ice in the climate system and hydrological cycle, and of the economic, social, and environmental impacts of rapid cryosphere change. High-profile launches and events in early 2025 marked the first observance year alongside the International Year.
Glaciers act as seasonal water towers for many mountain and downstream communities. When they thin and retreat, communities can face both short-term flood and debris risks and longer-term shifts in dry-season water supply. The UN day is about that science and those livelihoods — not a travel brochure for ice tourism.
An adjacent date matters for calendars. World Water Day is observed each year on 22 March. In 2025, UN-Water and glacier partners often linked glacier-preservation messaging with World Water Day programming. The two dates sit next to each other on purpose in awareness campaigns, but they are not the same observance. This page is March 21 only.
Why it matters
Most people never stand on a glacier, yet many drink or irrigate with water connected to mountain snow and ice. A named UN day is a chance for classrooms and newsrooms to treat glacier loss as a water story, not only a distant landscape photo.
How to celebrate
Read a short UNESCO, WMO, or UN-glaciers explainer before sharing a dramatic melt photo. Find which rivers or reservoirs near you depend on mountain snowpack. Support a local water-conservation habit that actually fits your home — fixing leaks beats a hashtag alone. Teachers can pair a map of major glacier regions with a simple water-cycle diagram. If you hike near ice, follow local guidance and leave the ice alone. Watch a documentary with sourced science rather than viral speculation. And if someone sends a March 22 graphic, file it under World Water Day, not this glacier date.
Facts
- The UN General Assembly proclaimed 21 March World Day for Glaciers in resolution A/RES/77/158 (14 December 2022)
- The day was to be observed starting in 2025, alongside the International Year of Glaciers’ Preservation
- UNESCO and WMO were invited to help facilitate the year and the annual day
- World Water Day falls on March 22 — an adjacent UN water date, not the glacier day
- The observance highlights glaciers, snow, and ice in climate and freshwater systems
Upcoming dates
- Saturday, March 21, 2026
- Sunday, March 21, 2027
- Tuesday, March 21, 2028
- Wednesday, March 21, 2029
- Thursday, March 21, 2030
Frequently asked questions
When is World Day for Glaciers in 2026?
World Day for Glaciers in 2026 falls on Saturday, March 21, 2026.
Is today World Day for Glaciers?
No. World Day for Glaciers in 2026 falls on Saturday, March 21, 2026, not today.
Is World Day for Glaciers the same as World Water Day?
No. World Day for Glaciers is March 21. World Water Day is March 22. Campaigns sometimes pair them; the calendar dates remain different.
When was the first World Day for Glaciers?
The UN resolution set the day to be observed starting in 2025, during the International Year of Glaciers’ Preservation.
Who created World Day for Glaciers?
The UN General Assembly, through resolution A/RES/77/158 in December 2022, with UNESCO and WMO invited to help facilitate the observance.
How do you celebrate World Day for Glaciers?
Learn a sourced glacier or water fact, teach it once, and take one practical water-saving step. It is a UN awareness date, not a federal day off.
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