WORLD DAY FOR GLACIERS
MARCH 21
Glaciers: Guardians of Earth's Future are massive, long-lived ice bodies formed from compressed snow that flow slowly, shaping landscapes by erosion and deposition. They hold about 69% of Earth's freshwater, regulate sea level, and affect regional climates and water supplies. Highly sensitive to temperature and precipitation, glaciers are key climate-change indicators; many are retreating, threatening ecosystems, water resources, and coastal communities.
World Day of Glaciers recognizes the vital role glaciers play in sustaining freshwater supplies, regulating sea level, and supporting ecosystems and human communities worldwide. Observed to raise awareness of rapid glacial retreat driven by climate change, the day highlights scientific research documenting shrinking ice, the socio-economic impacts on downstream populations, and the increased risks of glacial hazards such as outburst floods. It calls for coordinated action—strengthening climate mitigation, improving glacier monitoring, advancing adaptive water management, and supporting communities most affected by ice loss—so that societies can respond equitably to changing mountain and polar environments and protect the services glaciers provide for future generations.
Importance of Glaciers for Our Planet
Glaciers are among the most critical components of Earth’s climate and ecological systems. Their importance extends across hydrology, climate regulation, biodiversity, human livelihoods, and global sea level stability. They are vital freshwater reservoirs that supply rivers, support agriculture, and sustain ecosystems downstream. They act as climate regulators by reflecting sunlight and storing carbon, helping to moderate global temperatures. The slow movement of glaciers shapes landscapes, forming valleys and influencing groundwater recharge. Rapid glacier loss due to warming threatens water security, sea level rise, and the livelihoods of millions.
What needs to be done
Reduce greenhouse gas emissions to limit further warming and slow glacier retreat.
Improve monitoring and research to better predict glacier responses and downstream impacts.
Develop integrated water management strategies in glacier-dependent basins to prepare for changing seasonal flow patterns.
Support communities that rely on glaciers with adaptation planning, early warning systems for glacial hazards, and sustainable livelihood alternatives.
What we are doing to promote this day
Open to coordinating a global coalition of NGOs and research institutions to publish a joint statement and accompanying scientific briefs on glacier loss, impacts on water security and sea level rise, and clear policy recommendations for mitigation and adaptation.
Launch an awareness campaign with easy-to-share educational materials, clear data visuals, and short videos explaining glacier science, climate drivers, and practical steps for organizations and individuals to cut emissions and protect downstream water.
Advocate for increased government and donor funding for glacier monitoring, community-based adaptation, protected area management, and nature-based solutions to strengthen glacier-fed watershed resilience.
Glaciers are essential to planetary health, human well-being, and ecosystems. Protecting and planning for glacier changes is critical for water security, climate stability, and cultural conservation.
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