On 15 November 2007, a category 4 cyclone, called Cyclone Sidr, came ashore in Bangladesh. Wind speeds reached 225 km/h; some waves were eight metres high. More than 3200 people died. Bangladesh is a prisoner of its geography. Three rivers, the Brahmaputra, the Ganges and the Meghna, rise in the Himalaya mountains before they converge […]