Unbelief is now the world's third-largest 'religion'
A new report on global religious identity shows that while Christians and Muslims make up the two largest groups, those with no religious affiliation—including atheists and agnostics—are now the third-largest “religious” group in the world.
The study, released by the Pew Forum on Religion & Public Life, found that more than eight in ten (84 percent) of the world’s 7 billion people adhere to some form of religion. Christians make up the largest group, with 2.2 billion adherents, or 32 percent worldwide, followed by Muslims, with 1.6 billion adherents, or 23 percent worldwide.