In China, residents face decreasing fresh water supplies from shrinking lakes and polluted rivers

China's 1.3 billion people are facing multiple threats to their freshwater sources. Development and urbanization are causing thousands of natural lakes to shrink, and rivers are becoming more polluted threatening water security for farmers and city dwellers. Meanwhile, scientists trying to predict what impact melting glaciers and shifting monsoon patterns may have on China’s future generations. From Western China, Mike Ives reports.