- The analysis says that improvements in access to modern contraception and the education of girls and women could underpin "widespread" and "sustained" declines in global fertility.
- It means that, in the absence of liberal immigration policies, 183 of 195 countries on the planet will not be able to maintain current populations by the end of the century.
- Professor Ibrahim Abubakar of University College London, who was not involved in the research, said if the findings of the study were "even half accurate" then migration would become "a necessity for all nations and not an option."
A new report in the peer-reviewed medical journal The Lancet, published Tuesday, expects the global population to peak at 9.7 billion by the year 2064, with the number of people across the globe forecast to fall back to 8.8 billion by 2100.
Comment: How far can we trust these models in a unpredictable fast changing world?