Over the past century, the world's human population has exploded from around 2 billion to 8 billion. Meanwhile, the average fertility rate has gradually declined. And if that trend continues as it has ...

The capital of Indonesia surpassed Tokyo as the world’s most populous city after the United Nations overhauled how it measures urban populations. By John Yoon Jakarta, Indonesia’s vibrant, overcrowded ...

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According to Elon Musk, the world’s richest man and the father of at least a dozen children, the greatest potential risk to the future of civilisation is population collapse. Taking a very long-term ...

Jews are the smallest religious group analyzed separately in this report, accounting for 0.2% of the global population. Most Jews live either in North America (primarily in the United States) or in ...

Buddhists are the only group in this report whose number declined worldwide between 2010 and 2020. This was due both to religious disaffiliation among Buddhists in East Asia and to a relatively low ...