It is once again the 22 March and World Water Day, the international day to put water in the spotlight. This year the 21 March also represents the first World Day for Glaciers. These days represent a time to share and reflect on the state of the worlds water resources and freshwater ecosystems, and this time uniquely includes glaciers in the conversation.
Glaciers and ice sheets, holding 70% of the world’s freshwater, are melting at unprecedented rates due to rising temperatures. We are losing our natural freshwater storage – our ultimate nature-based solution is eroding in front of us. The State of Global Water Resources 2023 reports the largest mass loss of glaciers in 50 years.
Although this will temporarily increase downstream water availability, the long-term loss of glaciers threatens water supplies for billions, disrupts ecosystems, raises sea levels, and destabilizes agriculture and industry. A third of glaciers in World Heritage sites are set to disappear by 2050.
Climate change is already affecting global to local precipitation patterns, and it is how we respond to this in managing water where concerns lie. Precipitation as rainfall and not snow is going to lead to shifts in water availability and run-off. Capturing this water is going to become crucial for countries to adapt to shifting weather patterns and to ensure water security. With over 2 billion people relying on glaciers for direct water supply, water storage, and protection from floods, ensuring water supply and protection is going to become critically important.
