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This note, prepared by the Centre for Population, explores global population estimates and projections from the 2024 United Nations World Population Prospects.
With visualisations, the paper shows how global populations have changed since 1950. It also projects growth trends for the next century.
The analysis highlights the effects of low fertility rates, ageing populations, and the ‘demographic transition’. Finally, the paper compares population projections from the United Nations and the Centre for Population.