In numbers: is the world on the move?
The world is on the move, and much of it coming to live near you. Or so it might seem if you live in northern Europe just now.
But what is the big picture of migration, over decades and across the whole world? And how does what we're seeing today compare?
Michael Blastland, creator of Radio 4's More for Less, looks at the numbers.
(Photo: An emigration ship. Credit: Topical Press Agency/Getty Images)