Drought, floods, severe weather and other effects of climate change have begun to threaten communities in many parts of the world. These impacts will worsen in the future, contributing to growing human migration as vulnerable people seek safer, more stable living conditions. This expected migration of hundreds of millions of people can negatively affect human well being and political stability.

Rapid population growth in areas vulnerable to climate change will contribute to migration pressures by further straining limited natural resources and increasing population density in areas exposed to climate risks, including sea level rise.

Responding to the demand for family planning and reproductive health, especially in areas that are highly vulnerable to climate change, can slow population growth and reduce migration pressures.