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Gallup World Poll

The Many Faces of Global Migration

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The Many Faces of Global Migration report is an introduction to what Gallup has unearthed by asking migrants and potential migrants worldwide about their lives. The data presented in this report are based on Gallup’s ongoing World Poll surveys in more than 150 countries, territories and regions and more than 750,000 interviews since 2005. As such, these findings provide an unprecedented look at the different push-and-pull factors that influence migration, the experiences of those who desire to migrate to other countries permanently or temporarily for work, those who are planning to go, those who are preparing to go, those who have already left, and those who have returned home – and what this means for governments, intergovernmental and non-governmental organizations, and other stakeholders.

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Migration and the environment

Sudden or gradual environmental changes could increase migration flows – both internal and cross-border – over the next several decades. The lack of data on this subject makes it difficult to predict how much migration could increase or where people will migrate. Forecasts for the number of persons who have to move because of climate change or environmental degradation by 2050 range between 25 million and 1 billion people (IOM, 2010). Gallup World Poll studies in 116 countries in 2010 show that severe environmental problems could prompt roughly 500 million adults to move from where they live –to other countries or to other areas in their countries – in the next five years.

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