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Against the odds, endangered dolphins survive in Bangladesh’s polluted river

The Buriganga River, which flows by Dhaka city, is one of Bangladesh’s most polluted waterways and ranks among the most contaminated urban rivers in the world. Every day, the 29-kilometre- (18-mile-) long Buriganga River absorbs toxic industrial effluent from hundreds of factories, continuous tannery discharges, untreated sewage and solid waste, leaving much of the river […]