Whites will be an ethnic minority in Britain by the end of the century. Analysis of official figures indicate that, at current fertility rates and levels of immigration, there will be more non-whites than whites by 2100.
It would be the first time in history that a major indigenous population has voluntarily become a minority, rather than through war, famine or disease. Whites will be a minority in London by 2010.

In the early 1950s there were only a few tens of thousands of non-whites in the UK. By 1991 that had risen to 3 million - 6 per cent of the population. The population of ethnic minorities has been growing at between 2 and 4 per cent a year. Net immigration has been running at record levels, with 185,000 newcomers last year.

Government forecasts suggest that immigration on its own will be responsible for half the growth of the British population over the next couple of decades.

http://observer.guardian.co.uk/uk_news/story/0,6903,363750,00.html