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Dhrubajyoti Ghosh

Dhrubajyoti Ghosh (1947 – 16 February 2018) was a UN Global 500 laureate, special advisor on agricultural ecosystems, part of the Commission on Ecosystem Management, and regional chair for South Asia of the IUCN. He is most credited for devoting his life for the survival of the East Kolkata Wetlands, naming it, and creating the world's only fully functioning organic sewage management system. Provided by Wikipedia