There is no clear, one-size-fits-all explanation for a decision to migrate — a choice that will be made today by many people worldwide, and by an ever-rising number in years to come because of a lack of access to water, climate disasters, a health crisis and other problems.

Data are scarce on the multiple causes, or “push factors,” limiting our understanding of migration. What we can say, though, is that context is everything.

UN University researchers and others far beyond have been looking for direct and indirect links between migration and the water crisis, which has different faces — unsafe water in many places, chronic flooding or drought in others.

The challenge is separating those push factors from the social, economic, and political conditions that contribute to the multi-dimensional realities of vulnerable migrant populations, all of them simply striving for dignity, safety, stability, and sustainably in their lives.

A new report, ‘Water and Migration: A Global Overview,’ from UNU’s Institute for Water, Environment and Health, offers insights into water and migration interlinkages, and suggests how to tackle existing gaps and needs.