Megh Ale is known as the "River Man" in Nepal.

Elected to the Ashoka Fellowship in 2007, Ale is a river guide in Kathmandu and the founder and president of the non-profit Nepal River Conservation Trust. In this video, Ale shares the story of Nepal's rivers as he walks along the banks of the River Bagmati in Kathmandu, which he describes as the country's "holiest and the filthiest" river. Ale also raises concerns about another river, Karnali, the longest and the "most pristine Himalayan river" left in the country. Karnali may not remain free flowing for long, as a private engineering firm in neighboring energy-hungry India seeks to build a dam on the river to provide hydropower.