River System Climate Change in the Hatiya Islands and its Influence on the Island Environment

Islands are most vulnerable due to the impacts of climate change. An island of Bangladesh ‘Hatiya’ also affected by climate change. Present research conducted by primary and secondary data, based on qualitative and quantitative research with questionary survey and past record analysis. This study shows that Hatiya Island is influenced by natural disasters that are connected with the sea and river. Every year, due to climate change, cyclones are formed in rivers and seas. This study revealed that every year three to four storms are generated in the Bay of Bengal. The river environment is also responsible for landform changes in Hatiya Island; till now, 8 km have eroded. People change their living place because of river erosion. This study shows a 43.6 mm increase in precipitation, a 26% increase in cyclone intensity, and a temperature increase of 0.45 degrees Celsius. As a result, decrease crop and fish production. destroyed social bonding and historical heritage. Cultural, social, economic, and ecological environments are influenced by river systems. Most of the people are somehow affected by climate-related issues. Some areas are totally damaged for agriculture and home damage by soil salinity. The cause of environmental phenomena damaged cultural institutions as a result of human behavior and lifestyle influence. Health and economy are also affected by the change of river environment.