United
Nations World Population Prospects report said on Wednesday that India
would in six years sooner than previously forecast overtake China and
become the world’s most populous country.
John Wilmoth, Head of
the UN Population division said in New York, that the report indicated
that Nigeria was on course to outstrip the US by 2050 to become the
third largest population.
He said that the current global
population of 7.3 billion was forecast to reach 9.7 billion in 2050 and
11.2 billion in 2100, slightly above the last set of UN projections.
Wilmoth said that most growth would happen in developing regions, particularly Africa.
He
said that the demographic forecasts were crucial for designing and
implementing the new global development goals being launched later in
2015 to replace the Millennium Development Goals.
“The
concentration of growth in the poorest countries will make it harder to
eradicate poverty, combat hunger and expand schooling and health
systems.
Wilmoth said that research by experts predicted that
Africa would account for more than half the world’s population growth in
the next 35 years.
He said that 10 African countries which
include Angola, Burundi, Democratic Republic of Congo, Malawi, Mali,
Niger, Somalia, Uganda, Tanzania and Zambia are projected to increase
their population’s five-fold or more by 2100.
“Future population
growth is highly dependent on the path of future fertility, as
relatively small changes in fertility can, projected over decades,
generate large differences in total population.
“In recent years,
fertility has declined in almost all parts of the world, while life
expectancy has increased significantly in the poorest countries, rising
from 56 to 62 per cent since the beginning of the century,” he said.
He said that the report indicated that declining fertility and rising life expectancy mean the world was getting greyer.
Wilmoth
said that as a result of this most regions would have an ageing
population, starting with Europe where one third of the population was
projected to be over 60 by 2050.
“Globally, the number of people
aged 80 or over – currently 125 million – is projected to more than
triple by 2050 and to increase more than seven times by 2100.
“But populations in many regions are still young. In Africa, children under 15 account for two fifths of the population.
“The
large number of young people in Africa who will reach adulthood in the
coming years and have children of their own, ensures that the region
will play a central role in shaping the size and distribution of the
world’s population over the coming decades,” he said.
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