Climate change coupled with population growth and unsustainable economic development is significantly affecting the habitability and liveability of the world. The less developed countries are the most vulnerable to the adverse consequences of these phenomena since they often lack the resources and capacity to tackle them. This thesis aims to investigate the relationship between climate change, food insecurity and human mobility in the African continent. The first chapter draws on a broad literature review aimed to explore the role of climatic hazards and their transmission channels in influencing past and future human mobility flows. The analysis reveals that scientific research has widely investigated short-term weather events over long-term climate events, especially through livelihood based impacts, while often overlooking the differentiated vulnerabilities of marginalized groups to climate risks. The second chapter explores how agricultural productivity mediates the effects of drought on food insecurity, and human mobility in rural Ethiopia. The findings show that yield losses significantly contribute to food insecurity during intermittent drought years, but when such conditions persist, other channels dominate. No relevant impacts on mobility are detected, likely reflecting measurement constraints. The third chapter integrates human mobility and food insecurity projections with climate, demographic and socio-economic trajectories at sub-national level within a composite based indicator framework used to quantify future humanitarian risk. The analysis indicates that Sub-Saharan African countries are highly exposed to future risks, with the Sahel and the Horn of Africa emerging as critical vulnerability hotspots.
Il cambiamento climatico, unito alla crescita demografica e allo sviluppo economico insostenibile, sta influenzando significativamente l'abitabilità e la vivibilità del mondo. I paesi meno sviluppati sono i più vulnerabili alle conseguenze negative di questi fenomeni, poiché spesso non dispongono delle risorse e delle capacità per affrontarli. Questa tesi ha lo scopo di indagare la relazione tra cambiamento climatico, insicurezza alimentare e mobilità umana nel continente africano. Il primo capitolo si basa su un'ampia revisione della letteratura volta a esplorare il ruolo dei rischi climatici e dei loro canali di trasmissione nell'influenzare i flussi di mobilità umana passati e futuri. L'analisi rivela che la ricerca scientifica ha ampiamente studiato gli eventi meteorologici a breve termine rispetto a quelli climatici a lungo termine, soprattutto attraverso gli impatti sui mezzi di sussistenza, trascurando spesso le vulnerabilità differenziate dei gruppi emarginati ai rischi climatici. Il secondo capitolo esplora come la produttività agricola media gli effetti della siccità sull'insicurezza alimentare e sulla mobilità umana nell'Etiopia rurale. I risultati mostrano che le perdite di resa contribuiscono in modo significativo all'insicurezza alimentare durante gli anni di siccità intermittente, ma quando tali condizioni persistono, altri canali prevalgono. Non vengono rilevati impatti rilevanti sulla mobilità, probabilmente a causa della limitata disponibilità di dati. Il terzo capitolo integra le proiezioni future di mobilità umana ed insicurezza aimentare con quelle climatiche, demografiche e socioeconomiche a livello subnazionale, all'interno di un indice composito utilizzato per quantificare il rischio umanitario futuro. L'analisi indica che i paesi dell'Africa subsahariana sono altamente esposti a rischi futuri, con il Sahel e il Corno d'Africa che emergono come hotspot di vulnerabilità critica.
Delving into the Relationship Among Climate Change, Food (In)Security and Human (Im)Mobility in Africa / Bovienzo, D.. - (2026 Feb 10).
Delving into the Relationship Among Climate Change, Food (In)Security and Human (Im)Mobility in Africa
BOVIENZO, DOMENICO
2026
Abstract
Climate change coupled with population growth and unsustainable economic development is significantly affecting the habitability and liveability of the world. The less developed countries are the most vulnerable to the adverse consequences of these phenomena since they often lack the resources and capacity to tackle them. This thesis aims to investigate the relationship between climate change, food insecurity and human mobility in the African continent. The first chapter draws on a broad literature review aimed to explore the role of climatic hazards and their transmission channels in influencing past and future human mobility flows. The analysis reveals that scientific research has widely investigated short-term weather events over long-term climate events, especially through livelihood based impacts, while often overlooking the differentiated vulnerabilities of marginalized groups to climate risks. The second chapter explores how agricultural productivity mediates the effects of drought on food insecurity, and human mobility in rural Ethiopia. The findings show that yield losses significantly contribute to food insecurity during intermittent drought years, but when such conditions persist, other channels dominate. No relevant impacts on mobility are detected, likely reflecting measurement constraints. The third chapter integrates human mobility and food insecurity projections with climate, demographic and socio-economic trajectories at sub-national level within a composite based indicator framework used to quantify future humanitarian risk. The analysis indicates that Sub-Saharan African countries are highly exposed to future risks, with the Sahel and the Horn of Africa emerging as critical vulnerability hotspots.| File | Dimensione | Formato | |
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A_FINAL_Thesis_Draft_Domenico_Bovienzo.pdf
embargo fino al 10/02/2027
Descrizione: Delving into the Relationship Among Climate Change, Food (In)Security and Human (Im)Mobility in Africa
Tipologia:
Tesi di dottorato
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11.05 MB
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