... sea level, therefore any changes in the sea level would cause serious problems for Bangladesh. Another physical cause includes the snow melting in the Himalayas, caused by global warming. The Himalayas are one of the few places in the world that retain permanent glaciers. In the warmer summer season however glacial ice goes through a period of melting. The source of the Brahmaputra starts in the Himalayas and an increase in melted-water flowing through its drainage basin will increase channel flow, saturate soils and cause massive overland flow - a major cause of flooding. Another major cause is the cyclonic storms that frequent the Bay of Bengal. Storm surges which are rapid rises in sea-level caused by intense areas of low pressure i.e. depressions and tropical cyclones, precede cyclonic storms and are often as high as seven to ten meters. The heavy wet summer monsoons also contribute to the flooding, it ...

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