Flowing for 855 miles (1,375km) from its source in the crystal clear waters of the Himalayas, The Yamuna quickly becomes one of the most polluted rivers in the world after travelling through the metropolis of New Delhi. In this Guardian investigation, we learn about how poor regulation and enforcement of dumping laws are destroying this crucial life source.
Find out more: https://www.youtube.com/watch?v=eHCaIvPN2rY
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