Floating Migrant Camp Planned for Dorset
In the dystopian novel Children of Men by P.D. James (published in 1992) the world in the year 2027 teeters on extinction as mass infertility plagues the globe and mass immigration threatens to destroy what is left of the U.K.
The movie adaptation released in 2006 starring Clive Owen was a fair representation with some stark imagery, but I would still recommend reading the novel.