Global population forecast to peak by 2064 before shrinking at end of century

The global population may peak at around 9.7 billion in 2064 before falling to 8.8 billion by the end of the century, a new study suggests.
Researchers at the University of Washington have based their forecast on a falling overall fertility rate, which is the average number of children a woman gives birth to, as girls get better access to education and contraception.