Executive summary

Since the middle of the twentieth century, world population has more than tripled in size, rising from around 2.5 billion in 1950 to almost 7.9 billion in 2021. Projections by the United Nations suggest that the size of the global population could grow to almost 11 billion by the end of the twenty-first century, when it is expected to stabilize. A growth rate close to zero around 2100 would signal the end of the current era of rapid population growth, which began around 1800 in some regions and in the middle of the twentieth century on a global scale.

Sustainable Development Goals:

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