Source

UNITED STATES, April 2, 22015 (Pew Forum): The religious profile of the world is rapidly changing, driven primarily 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 the number of Muslims will nearly equal the number of Christians around the world. Atheists, agnostics and other people who do not affiliate with any religion – though increasing in countries such as the United States and France – will make up a declining share of the world’s total population. The global Buddhist population will be about the same size it was in 2010, while the Hindu and Jewish populations will be larger than they are today.

Worldwide, the Hindu population is projected to rise by 34%, from a little over 1 billion (currently 15% of the worlds’ population) to nearly 1.4 billion (14.9% of worlds’ population), roughly keeping pace with overall population growth. In North America, the Hindu share of the population is expected to nearly double in the decades ahead, from 0.7% in 2010 to 1.3% in 2050, when migration is included in the projection models. Without migration, the Hindu share of the region’s population would remain about the same (0.8%).

The Asia-Pacific region is expected to have a declining share of the world’s population (53% in 2050, compared with 59% in 2010). This will be reflected in the slower growth of religions heavily concentrated in the region. One exception is Hindus, who are overwhelmingly concentrated in India, where the population is younger and fertility rates are higher than in China or Japan. Hindus are projected to roughly keep pace with global population growth. India’s large Muslim population also is poised for rapid growth. Although India will continue to have a Hindu majority, by 2050 it is projected to have the world’s largest Muslim population, surpassing Indonesia.

Europe is the only region where the total population is projected to decline in the coming decades. However, over the same period, the number of Hindus in Europe is expected to roughly double, from a little under 1.4 million (0.2% of Europe’s population) to nearly 2.7 million (o.4%), mainly as a result of immigration.

These are among the global religious trends highlighted in new demographic projections by the Pew Research Center. The projections take into account the current size and geographic distribution of the world’s major religions, age differences, fertility and mortality rates, international migration and patterns in conversion.

Much more of this extensive study at source. Also see next article for an Indian assessment.