By 2050, India should be the world’s most populated country, the UK’s population should grow from 68.8 million today to 76.9 million, but the population of Europe should actually shrink, so says the latest data from the Population Reference Bureau published this morning. By 2050, Africa should account for 21 per cent of the world’s population, from just 9 per cent in 1950. "Nearly all of world population growth is now concentrated in the world's poorer countries," said Bill Butz, PRB's president. "Even the small amount of overall growth in the wealthier nations will largely result from immigration." In all, there are 6.7 billion of us around today. The report predicts that