According to a 2012 Pew Research Center survey Christianity will remain the world 's largest religion in 2050 , if current trends continue .
By 2050 , the Christian population is expected to exceed 3 billion .
According to a 2012 Pew Research Center Christian Christian will remain the world 's largest religion in 2050 , if current trends continue .
By 2050 , the Christian population is expected to exceed 3 billion .