A Bangladeshi girl collects drinking water from a hole in the ground in Dhaka 22 March 2006, on the World Water Day. The United Nations warned that trouble caused by the world's dwindling supply of fresh water goes far beyond perpetual thirst for billions around the globe. "Freshwater shortages are likely to trigger increased environmental damage over the next 15 years," noted the UN Environmental Program's Global International Waters Assessment (GIWA) report, based on the input of 1,500 experts worldwide.