Sundarbans
Human made hazards

In August 2010, a memorandum of understanding was signed between Bangladesh Power Development Board (BPDB) and India's state-owned National Thermal Power Corporation (NTPC) where they designated to implement the coal-fired Rampal power station by 2016. The proposed project, on an area of over 1,834 acres of land, is situated 14 kilometres (8.7 mi) north of the Sundarbans. This project violates the environmental impact assessment guidelines for coal-based thermal power plants. Environmental activists contend that the proposed location of the Rampal Station would violate provisions of the Ramsar Convention. The government of Bangladesh rejected the allegations that the coal-based power plant would adversely affect the world's largest mangrove forest.

On 9 December 2014 an oil-tanker named Southern Star VII, carrying 358,000 litres (79,000 imp gal; 95,000 US gal) of furnace oil, was sunk in the Sela river of Sundarbans after it had been hit by a cargo vessel. The oil spread over 350 km (140 sq mi) area after the clash, as of 17 December. The slick spread to a second river and a network of canals in the Sundarbans and blackened the shoreline. The event was very threatening to trees, plankton, and vast populations of small fishes and dolphins. The event occurred at a protected Sundarbans mangrove area, home to the rare Irrawaddy and Ganges dolphins. Until 15 December 2014 only 50,000 litres (11,000 imp gal; 13,000 US gal) of oil from the area had been cleaned up by local residents, the Bangladesh Navy, and the government of Bangladesh. Some reports indicated that the event killed some wildlife. On 13 December 2014, a dead Irrawaddy dolphin was seen floating on the Harintana-Tembulbunia channel of the Sela River.
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