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Letter to the World Bank - What are the causes and effects of flooding in Bangladesh?

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Introduction

Cross unit task What are the causes and effects of flooding in Bangladesh? World bank, My name is Corrina I am writing to make you take notice of the horrific times Bangladesh has to face. At least once a year they suffer from a serious flood, which have awful effects. They have a huge amount of crops ruined, which means no food for the hungry young children and the adults. Having no food maybe bad but seven million homes are damaged or totally destroyed. So means people in Bangladesh are made homeless. One flood causes 2,379 deaths. So people loose loved ones. After reading this I hope you offer Bangladesh help. Bangladeshis is in Southeast Asia. Its latitude is between 20'34 and 26'39 and its longitude is between 88'00 and 92'41 east. It has a high population of 118.000.000 and an area of 144.000 sq km. This makes it one of the most densely populated countries in the world. It has a population density of 824 people per sq km. Bangladesh is boarded by India on the north, west, and east, Myarmer on the south-east, and the Bay of Bengal is to the south. The capital city is Dhaka, which is 1,400 km from India and roughly 600 km from Mandalay. The 3 main rivers are the Ganges, the Jamuna, and Bramaputra. The Brahmaputra being in the north the river Ganges being northeast and the river Jamuna being in the centre of them all. ...read more.

Middle

The electricity supply was cut off for several weeks and there was no safe drinking water because the wells were flooded and the water in them was polluted. Having no electricity meant no lights, heating, and other main essentials. Over seven million homes were ruined and twenty five million made homeless and having nowhere else to go. 2379 deaths but some of these could have just been reported missing. Causes of death were: drowning, diseases such as cholera, and snakebites. There was then a lack of food and medicine. Two million tonnes of rice, 1/4 of normal crop yield was destroyed. Thousands of km's of roads, 1/3 of railways and the international airport at Dhaka were flooded. Due to this there was no way of getting emergency food and medicine delivered to those who needed it. The area of land covered was 80% the depth of the water was two meters high. Other crops that were destroyed were jute, sugar cane and vegetable crops. 1/2 million cattle and poultry were lost. The storm surges were 7 metres high the air pressure rose the sea level dropped and a high tide and heavy winds appeared. All these 3 put together makes it bigger than the normal storm surge. There are benefits of flooding, for farming. This is because the silt deposited by the rivers forms potentially the most creative agricultural land in the world. ...read more.

Conclusion

But before the monsoon water would be drained away. Or lastly they could build embankments these would be up to a height of seven metres, and more than 7500km of embankment is already in place, but repairs, heightening and new building would cost over $6 billion. This could stop flooding from river overflow. But problems of the flood action plan are that the embankments will trap rainwater and make flooding worse. Dam constructions could increase the build up of silt and make flooding worse. The plans could cost too much. The systems could damage the environment, and some state. Up to 1/2 a million people will lose their land to reservoirs and embankments. Trees can also reduce the risk of flood. The leaves intercept rainfall and so delay run - off to the river, then evapotranspiration reduces the amount of water reaching the river, roots delay through flow of water to the river and the finally roots take up water and so reduces the amount entering the river. But yet some problems with the flood action plan. People said that human activities such as embankment construction, dam building and deforestation have increased the amount of silt being deposited and this means it added to the harshness of flooding. Some researchers claim Bangladesh results mostly from snowmelt and run - off in the Himalayans. The huge clearance of forest, increased run - off and erosion rates which caused more silt to be deposited downstream and resulted In higher levels of flooding. ...read more.

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