Global warming and sea level rising: impact on Bangladesh agriculture and food security

Research Grant Reports
[Final Report CF # 10/07]

Increasing concentration of greenhouse gases (GHG) in the earth atmosphere is contributing to the thermal expansion of sea water, melting of glaciers ice and rise of sea-level. Most coastal parts and associated islands of Bangladesh are within the range of 1 m from sea level and worldwide recognized as extremely vulnerable where incursion of saline water is a common feature. It is predicted that with further rise in sea level these areas will be inundated and unsuitable for crop production in the next 50 years; forcing more than 35 million people to become climatic refugees and victims of food insecurity. Bay of Bengal is the breeding ground for formation of tropical cyclones that lashes Bangladesh coast twice in a year, the most devastating ones occurring late-April to mid-May and mid-October to mid-November that coincide with the pre-harvest times of Boro and Aman crops, respectively. The frequencies and nature of cyclonic devastation will also be increased making coastal agriculture increasingly difficult to sustain. The coastal zone at present is a monocropped area covered by Aman in the wet season, mostly fallow or sporadic Boro, pulses, vegetables and other crops in dry-season. The area is also characterized by net-work of rivers, innumerable canals and channels with easy vicinity of brackish water even during dry season. To evade devastating effects of cyclones policy makers, researchers, extension workers, GOs and NGOs should concertedly work to advance the harvesting time of Aman and Boro crops by a fortnight, introduce Boro and other cereals and vegetables during dry season.    

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Date and language
Apr 2009
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Agris Subject Categories: 
Climate change
Agris Subject Categories: 
Agricultural economics and policies
Agris Subject Categories: 
Food Security
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