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Experts: New islands could solve Bangladesh land crisis

  • Published at 12:00 pm November 14th, 2017
Experts: New islands could solve Bangladesh land crisis
Dozens of new islands have emerged from the waters around Bangladesh over the last decade, providing a possible solution to the existential threat that rising sea levels pose to the low-lying coastal nation. The government said Monday that 29 islands with a combined area of 125,370 acres (507 square kilometres) had emerged from the Bay of Bengal since 2007. Every year Himalayan rivers carry an estimated one billion tones of silts and deposit them in the Bay of Bengal off the coast of Bangladesh, forming islands in the shallow waters. Many of these islands, known as chars in Bangladesh, are already inhabited and experts told AFP they could mitigate the threat posed by global warming. "Every year Bangladesh has new land emerging and new land being devoured by rivers and sea," said Maminul Haque Sarker, head of the Center for Environment and Geographic Information Services. He said studies by the Dhaka research centre had shown a net gain of territory of around 12-14 square kilometres. Most of the new land is near the estuary of the Meghna river, which is the confluence of the main tributaries of the two main Himalayan rivers of the Ganges and the Brahmaputra. One of the islands has controversially been earmarked as a possible temporary base for the hundreds of thousands of Rohingya refugees from Myanmar currently living in squalid -- mostly makeshift -- camps in southern Bangladesh. The United Nations says 615,000 refugees from the Muslim minority have crossed into Bangladesh from its Buddhist neighbour since late August. The influx has overwhelmed existing facilities in the densely populated country, and authorities have struggled to find alternative land to house them. A recent World Bank study projected that 40% of productive land in southern Bangladesh would be submerged by the year 2080 due to a rise in sea levels. A decade ago the influential Intergovernmental Panel on Climate Change (IPCC) said a one-metre (three-foot) rise in sea levels would flood 17% of Bangladesh and create 20 million refugees by 2050. Local scientists, however, criticized the study for failing to take into account the silt islands, which are highly fertile. Water expert Zahirul Haque Khan told AFP dams could be set up to trap the vast amounts of sediment that flows from Bangladesh's rivers into the sea every year. "Bangladesh can gain hundreds of square kilometres of new land by trapping silt through cross dams and engineering interventions," said Khan, director of Institute of Water Modelling in Dhaka.
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