Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh
The livelihoods of coastal people are at risk as shoreline migration is accelerated by climate change. To safeguard these communities and maintain their economy, it is imperative to strengthen resilience via adaptive strategies. Therefore, this study aims to estimate the rates and impacts of physica...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Sustainability |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/frsus.2024.1525483/full |
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| author | Md. Tariqul Islam Md. Tariqul Islam Md. Monabbir Hossain Nur Mohammad Ha-Mim Md. Zakir Hossain Sujit Kumar Sikder |
| author_facet | Md. Tariqul Islam Md. Tariqul Islam Md. Monabbir Hossain Nur Mohammad Ha-Mim Md. Zakir Hossain Sujit Kumar Sikder |
| author_sort | Md. Tariqul Islam |
| collection | DOAJ |
| description | The livelihoods of coastal people are at risk as shoreline migration is accelerated by climate change. To safeguard these communities and maintain their economy, it is imperative to strengthen resilience via adaptive strategies. Therefore, this study aims to estimate the rates and impacts of physical shoreline migration over the past 9,000 years using geospatial analysis and focus on understanding the livelihood resilience of coastal at-risk communities using in-depth interviews with environmental experts. The dynamic system of the Ganga-Brahmaputra-Meghna is highly complex and causes continuous shoreline migration. Historical data and more recent satellite remote sensing imagery analysis identified that the shrinking of the delta system has resulted from the migration of the shorelines at the mouth of the river system. Since 5,000 BP, it has been expanding towards the Bay of Bengal – meaning land gains at the coast. Land gain provides an opportunity for the extension of coastal communities but also increases their vulnerability to natural hazards. Moreover, by 2050, the salinity isoline with a 5-ppt is expected to shift inland by ⁓8 km in the south-east (Bhola-Patuakhali) and ⁓24 km in the southwest (Khulna-Satkhira) region. The in-depth interviews reveal several adaptive practices to effectively deal with the situation, including community knowledge, stakeholder engagement, local-led adaptation, and most importantly, temporal migration. The findings also highlighted the urgent need for an adaptation plan for the sustainability and resilience of coastal communities, considering indigenous knowledge with local cultural orientation and incorporation of scientific standards. |
| format | Article |
| id | doaj-art-19d3604d9f874313939888c44646bcd7 |
| institution | Kabale University |
| issn | 2673-4524 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Sustainability |
| spelling | doaj-art-19d3604d9f874313939888c44646bcd72025-01-07T06:41:02ZengFrontiers Media S.A.Frontiers in Sustainability2673-45242025-01-01510.3389/frsus.2024.15254831525483Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal BangladeshMd. Tariqul Islam0Md. Tariqul Islam1Md. Monabbir Hossain2Nur Mohammad Ha-Mim3Md. Zakir Hossain4Sujit Kumar Sikder5Faculty of Engineering and Applied Sciences, Cranfield Environmental Centre, Cranfield University, Cranfield, United KingdomSchool of Natural Sciences, College of Health and Science, University of Lincoln, Lincoln, United KingdomDepartment of Environmental Science, Bangladesh Agricultural University, Mymensingh, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, BangladeshLeibniz Institute of Ecological Urban and Regional Development, Dresden, GermanyThe livelihoods of coastal people are at risk as shoreline migration is accelerated by climate change. To safeguard these communities and maintain their economy, it is imperative to strengthen resilience via adaptive strategies. Therefore, this study aims to estimate the rates and impacts of physical shoreline migration over the past 9,000 years using geospatial analysis and focus on understanding the livelihood resilience of coastal at-risk communities using in-depth interviews with environmental experts. The dynamic system of the Ganga-Brahmaputra-Meghna is highly complex and causes continuous shoreline migration. Historical data and more recent satellite remote sensing imagery analysis identified that the shrinking of the delta system has resulted from the migration of the shorelines at the mouth of the river system. Since 5,000 BP, it has been expanding towards the Bay of Bengal – meaning land gains at the coast. Land gain provides an opportunity for the extension of coastal communities but also increases their vulnerability to natural hazards. Moreover, by 2050, the salinity isoline with a 5-ppt is expected to shift inland by ⁓8 km in the south-east (Bhola-Patuakhali) and ⁓24 km in the southwest (Khulna-Satkhira) region. The in-depth interviews reveal several adaptive practices to effectively deal with the situation, including community knowledge, stakeholder engagement, local-led adaptation, and most importantly, temporal migration. The findings also highlighted the urgent need for an adaptation plan for the sustainability and resilience of coastal communities, considering indigenous knowledge with local cultural orientation and incorporation of scientific standards.https://www.frontiersin.org/articles/10.3389/frsus.2024.1525483/fullclimate changeshoreline migrationspatial analysisremote sensing-GISadaptation practicesmixed method |
| spellingShingle | Md. Tariqul Islam Md. Tariqul Islam Md. Monabbir Hossain Nur Mohammad Ha-Mim Md. Zakir Hossain Sujit Kumar Sikder Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh Frontiers in Sustainability climate change shoreline migration spatial analysis remote sensing-GIS adaptation practices mixed method |
| title | Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh |
| title_full | Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh |
| title_fullStr | Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh |
| title_full_unstemmed | Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh |
| title_short | Climate change impacts on shoreline migration and community livelihood resilience: evidence from coastal Bangladesh |
| title_sort | climate change impacts on shoreline migration and community livelihood resilience evidence from coastal bangladesh |
| topic | climate change shoreline migration spatial analysis remote sensing-GIS adaptation practices mixed method |
| url | https://www.frontiersin.org/articles/10.3389/frsus.2024.1525483/full |
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