Environmental Volatility and Human Mobility: A Mixed-Methods Analysis of Climate-Induced Internal Migration and Regional Stability in Pakistan

Abstract

Pakistan represents one of the most significant geographical contexts for examining climate-induced displacement. The country is currently ranked among the ten most vulnerable nations on the Global Climate Risk Index (Eckstein et al., 2021). Environmental instability in Pakistan manifests through three major dynamics: accelerated glacial melting in the Hindu Kush–Himalayan region, increasing monsoonal variability, and abnormal warming across the Indus Basin (IPCC, 2023). While the physical consequences of these processes—often reflected in shifts in hydrological systems, groundwater availability, and land productivity—are well documented, their socio-demographic implications, particularly internal migration, are increasingly recognized as a key pathway through which climate change threatens state stability.

Climate-induced migration in Pakistan is no longer a marginal humanitarian issue but a significant demographic transformation. Millions of people are displaced as agricultural productivity declines due to rising soil salinity linked to long-term irrigation in arid and semi-arid environments. In addition, unexpected floods devastate rural livelihoods, particularly in low-lying alluvial regions with limited drainage capacity (World Bank, 2021). These environmental pressures are gradually reshaping rural economies and accelerating migration toward urban centers.

This paper explores the nexus between environmental degradation and internal migration by arguing that these movements function as a “threat multiplier,” disrupting regional stability and placing additional pressure on existing governance frameworks. The concept of climate change as a threat multiplier draws on earlier work by the CNA Corporation (2007) and was further developed by Werrell and Femia (2017). According to this framework, environmental shocks do not necessarily generate new conflicts ex nihilo; rather, they interact with pre-existing socio-economic grievances, ethnic tensions, and institutional weaknesses. In the Pakistani context, climate-driven mobility increases pressure on urban systems, intensifying competition for water, housing, and employment opportunities, which may contribute to localized socio-political tensions (Khalid, 2021).