A new report by the Pew Research Centre said, ‘The religious profile of the world is rapidly changing, driven by differences in fertility rates and the size of youth populations among the world’s major religions, as well as by people switching faiths. Over the next four decades Christians will remain the largest religious group, but Islam will grow faster than any other major religion if current trends continue. By 2050, Christianity is set to decline further in the UK and Europe. 25% of all Christians lived in Europe in 2010. By 2050 this is set to drop to 15.6 % and Africa will have the most Christians. In 2010, 24% of the world's Christians lived in sub-Saharan Africa by 2050 it will exceed 38% according to Pew. Europe’s ‘absolute number’ of Christians will fall from 553 million in 2010 to 454 million in 2050.