Author/s:

Sharmin, S.

Publisher:

ASIAN JOURNAL OF SCIENCE AND TECHNOLOGY

Year of Publication:

2018

Bangladesh is likely to be one of the most vulnerable countries in the world to climate change. This paper discusses the possible impacts of climate change in coastal zone of Bangladesh through tropical cyclones, storm surges, coastal erosion and sea level rise. The possible increase in cyclone frequency in the Bay of Bengal, lying south of Bangladesh, due to climate change is looked at by analyzing the cyclone data for 119 yr. Both qualitative and quantitative discussions are made on cyclone intensity increase for a sea surface temperature rise of 2 and 4°C. The coastal region of Bangladesh covers about 20% of total land area. It includes highly diverse ecosystems e.g. the world’s largest single tract of mangroves (the Sundarbans), beaches, coral reefs, dunes and wetlands. With its dynamic natural environments, provides a range of goods and services to the peoples of Bangladesh. It is agreed and documented that being a deltaic coastal country, Bangladesh is one of the most vulnerable countries to climate change in the world. Climate related change in coastal zones are already growing pressure. The country has already been facing several climate change effects such as increasing cyclones, flood frequency probabilities, erosion, inundation, rising water tables, salt water intrusion and biological effects. Coastal environments particularly at risk include mangroves, tidal deltas and low-lying coastal plains, sandy beaches, coastal wetlands, estuaries and coral reefs. These bio-geophysical possessions will have consequent effects on ecosystems and eventually affect socio-economic systems in the coastal zone. The Sundarbans, most important ecosystem of the country will be totally lost with one meter rise in sea level. There are two options to minimize the impacts named mitigation and adaptation. It is needed to be considered both mitigation and adaptation options for Bangladesh, even though the country has very limited scope for mitigation. This is why mitigation involves global efforts to execute and adaptation is more local. As a result, effective adaptation policies and mitigation measures ought to be developed and implemented to minimize climate related impacts on Bangladesh

comments powered by Disqus