Applying machine learning to social datasets: a study of migration in southwestern Bangladesh using random forests

Regional Environmental Change, Год журнала: 2022, Номер 22(2)

Опубликована: Март 25, 2022

Abstract As researchers collect large amounts of data in the social sciences through household surveys, challenges may arise how best to analyze such datasets, especially where motivating theories are unclear or conflicting. New analytical methods be necessary extract information from these datasets. Machine learning techniques promising for identifying patterns but have not yet been widely used identify important variables surveys with many questions. To demonstrate potential machine we apply study migration Bangladesh. The complexity decisions makes them suitable analysis techniques, which enable pattern identification datasets covariates. In this paper, random forest analyzing a survey captures approximately 2000 1700 households southwestern Our ranked covariates dataset terms their predictive power decisions. results identified most covariates, there exists tradeoff between ability and interpretability. address tradeoff, forests other algorithms useful combination more traditional regression methods. develop insights into by algorithm impact migration, performed survival time first migration. With combined analysis, found that related wealth composition predictors Such multi-methods approaches help shed light on factors contributing non-migration.

Язык: Английский

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“I can migrate, but why should I?”—voluntary non-migration despite creeping environmental risks

Humanities and Social Sciences Communications, Год журнала: 2023, Номер 10(1)

Опубликована: Янв. 25, 2023

Abstract ‘Environmental non-migration’ refers to the spatial continuity of an individual’s residence at same place despite environmental risk. Moreover, this is a largely under-researched topic, especially within climate change adaptation discourse, but increasingly coming attention scientists and policymakers for sustainable planning. So far, there exists hardly any conceptual methodical guidelines study non-migration. Considering research gap, paper explores non-migration based on notion that factors livelihood resilience can partly explain decision Here, seen as outcome interactions between societal conditions individual household. These inform decisions (to stay or migrate) taken in case hazard creeping change. Their influence generalises spectrum migration decision-making migrate), which conceptualised by four broad outcomes categorised into voluntary involuntary, non-migrants migrants. This analytical concept operationalised through empirical example southwest coastal Bangladesh. The results suggest Livelihood Resilience Index (LRI) relates nature once they are made. Still, only household’s cannot predict household makes migrate. concludes proposed concept, with its exemplary factors, maybe initial means holistically explore context natural hazards However, remains complex multi-faceted, assessment requires deeper examination various scales.

Язык: Английский

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Intergenerational grounding of women’s environmental non-migration

Population and Environment, Год журнала: 2025, Номер 47(1)

Опубликована: Янв. 22, 2025

Abstract This study examines the impact of intergenerational learning and intellectual capital on women’s voluntary decisions to remain in place despite environmental risks. By investigating how women experience decision stay through knowledge transfer, we analyze adaptability communities facing climate-driven livelihood challenges intricate socio-ecological factors that tie individuals their homes. Through life-story interviews with 70 from 25 households five hazard-prone sites Bangladesh, reveals nuanced patterns traditional gender roles both support limit autonomy making mobility choices. Although vary across site scale, systemic issues such as arranged child marriage, financial instability, (traditional) home-bound duties, male authority over decisions, gendered expectations consistently emerged barriers (non-)migration, even when they aspired leave. Thus, this research offers insights into (non-)migration its intergenerationality, which is inevitable developing sustainable adaptation pathways.

Язык: Английский

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Exploring the Realities of (Im)mobility, Climate Change, and Disasters

Опубликована: Янв. 1, 2025

Язык: Английский

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Economic inequality is a crucial determinant of observed patterns of environmental migration

Communications Earth & Environment, Год журнала: 2025, Номер 6(1)

Опубликована: Март 12, 2025

Язык: Английский

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Livelihood diversification as key to long-term non-migration: evidence from coastal Bangladesh

Environment Development and Sustainability, Год журнала: 2020, Номер 23(6), С. 8924 - 8948

Опубликована: Окт. 3, 2020

Abstract Understanding how livelihood diversification contributes to long-term non-migration decisions of people at risks is innovative and timely in the context future climate change adaptation planning. This study particularly examines this question explores what extent face can support for living southwest coastal region Bangladesh. We employed a cluster random sampling method select respondents interviewed total 183 households by using structured questionnaire. Analysis indicates that tendency based on shrimp-farming has been intensified recent years as land use pattern also changed due frequent occurrence environmental hazards. The Poisson regression model states belonging religious minority shrimp farming determines diversification, i.e., if person belongs religion possesses shrimp-farm they will have more diversified sources income compared others society. Moreover, therefore, one every three these studied communities’ practices seasonal migration an alternative strategy so their family stay put. outcome motivates government non-government organizations take policies programs direction may reduce dependency introduce locally adoptable employment opportunities.

Язык: Английский

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A bibliometric review on the drivers of environmental migration

AMBIO, Год журнала: 2021, Номер 51(1), С. 241 - 252

Опубликована: Март 18, 2021

Язык: Английский

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Promise, premise, and reality: the case of voluntary environmental non-migration despite climate risks in coastal Bangladesh

Regional Environmental Change, Год журнала: 2021, Номер 22(1)

Опубликована: Дек. 11, 2021

Abstract Despite confronting severe climatic risks, many people prefer to remain in climate hazard-prone areas rather than migrate. Environmental non-migration behavior, however, has gained relatively little research attention the field of migration processes. This study aims unveil determinants motivating voluntary environmental decisions coastal Bangladesh, an area highly exposed flooding and other climate-related hazards (e.g., soil salinization). Applying a systematic random sampling, we selected 556 household respondents for questionnaire survey from 14 villages two districts: Khulna Satkhira. mixed method (i.e., both quantitative qualitative) approach, major empirical results this suggest that even though all lived similar situation terms hazard exposure, 88% reported themselves as non-migrants. Furthermore, these non-migrants enjoyed higher socioeconomic sociopsychological advantages availed more local support different government non-government organizations involuntary Again, mutual assistance, connection with social groups, natural resource access, sense secured livelihood, stable societal atmosphere, participation decision-making society appeared build their degree capital $$({\chi }^{2}\left(4\right)=57.80;p<0.000)$$ ( χ 2 4 = 57.80 ; p < 0.000 ) compared All features lead favorable environment ultimately drove become

Язык: Английский

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Climate change and non-migration — exploring the role of place relations in rural and coastal Bangladesh

Population and Environment, Год журнала: 2022, Номер 44(1-2), С. 99 - 122

Опубликована: Май 21, 2022

Abstract Of growing research and policy interest are the experiences of people living under conditions climate change–induced environmental stress, which either unable to migrate (sometimes described as a ‘trapped population’) or seemingly unwilling do so ‘voluntarily immobile’). This paper problematises expands upon these binary categories: examining complex dimensionality non-migration form place relations, explored through qualitative study rural coastal Bangladeshi communities. Through 60 semi-structured interviews individuals from four communities in Kalapara region, analysis proffers qualitatively derived inter-related dimensions voluntary involuntary framed relations. These concern following: (1) livelihood opportunities, (2) obduracy, (3) risk perceptions, (4) social-structural constraints, with interplay between elements explaining diverse non-migratory experiences. In our analysis, ‘place obduracy’ is introduced concept describe differential speed change socio-cultural adaptation responses explain Our discussion provides insight into how best support non-migrant people’s adaptive capacity face emergency.

Язык: Английский

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Climate change and the public health imperative for supporting migration as adaptation

Journal of Migration and Health, Год журнала: 2023, Номер 7, С. 100174 - 100174

Опубликована: Янв. 1, 2023

In an era of accelerating global climate change, human mobility has reached unprecedented levels. While it is acknowledged that many cases migration in the context change are forced or involuntary, particularly where adaptation measures have failed to achieve sufficient resiliency communities against impending slow- and sudden-onset disasters. There also is, itself, a voluntary adaptive measure secure otherwise unattainable physical safety life-sustaining resources. It these can be viewed as adaptation. Under right policy conditions, possible for such save countless lives. Moreover, remarkable health well-being gains vulnerable residing on environmentally degrading lands disproportionately suffering from impacts change. several activists spoken loudly topic migration, emphasizing rights imperative supportive action, public community not been equally vocal nor unanimous its stance. This paper, product World Federation Public Health Associations (WFPHA) Environmental Working Group, aims rectify this gap, by analyzing through lens. doing so, argues creating enabling environment just imperative, but one. argument supported evidence demonstrating how synergistically support fulfillment key services functions, outlined under internationally endorsed Global Charter Public's WFPHA.

Язык: Английский

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