The fastest growing religion in the world today is Islam.
Islam's growth is attributed to a number of factors, including its high birth rate, conversion rates, and migration patterns.
According to the Pew Research Center, the number of Muslims worldwide is projected to surpass the number of Christians by the year 2050.
This growth is particularly evident in regions such as Africa and Asia, where Islam is already the dominant religion.
However, it is important to note that the growth of Islam is not uniform across the globe.
In some countries, such as Europe, the number of Muslims is declining.
Overall, Islam's growth is a significant trend that is shaping the religious landscape of the world.