The Guardian reports on a UN study of population growth. The report includes projections for 2100:
According to the UN Population Division’s best-case ‘medium’ estimate – and you can see the original report here – it will take 13 years to add the eighth billion, 18 years to add the ninth billion and 40 years to reach the tenth billion.
And what about China and India? China will hit its peak population in 2027 when it will have over 1.395bn people, before reducing down to 941m by the year 2100. India will hit 1.718bn in 2062, and will come down after that to 1.6bn by 2100.