Glacial retreat: “With few exceptions, all the alpine glaciers of the world are losing mass and it is predicted that this trend will continue as global warming progresses. Glaciers in alpine areas act as buffers. During the rainy season, water is stored in the glaciers and the melt water helps maintain river systems during dry periods. An estimated 1.5 to 2 billion people in Asia (Himalayan region) and in Europe (The Alps) and the Americas (Andes and Rocky Mountains) depend on river systems with glaciers inside their catchment areas. In areas where the glaciers are melting, river runoff will increase for a period before a sharp decline in runoff. Without the water from mountain glaciers, serious problems are inevitable and the UN’s Millennium Development Goals for fighting poverty and improving access to clean water will be jeopardized” United Nations Environment Programme, 2007 Global Outlook for Ice and Snow. Glacial retreat since 1850 has been worldwide and rapid, affecting the avai...
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