250 babies born every minute...

250 babies born every minute, how many people the earth can support

00:05 - We don’t know for sure as all figures are estimates, but UN data suggests there were about a billion people in 1800, 2 billion in 1927, 5 billion in 1987 and just over 7.5 billion today.
There are on average about 250 babies born every minute – more than 130 million in a year. It is projected that there will be 11 billion people by 2100. New UN figures are due out in June.
Most national governments make their own population projections. The United Nations and the World Bank figures are the most widely used globally.
Since the 1960s, more boys than girls have been born every year. About 117 million women are believed to be “missing” in Asia and eastern Europe – due to discriminatory son preference and gender-biased sex selection.
Over the last 30 years, some regions have seen up to 25% more male births than female births, reflecting the persistent low status of women and girls. The consequent gender imbalance can have damaging social effects such as increased sexual violence and trafficking.
01:10 - Where is the population rising fastest – and slowest?
Broadly speaking, the fastest population rises are being recorded in Africa and Asia, which will have 15 of the 20 most populous nations by 2050. By that year, there will be more Nigerians than Americans. By 2100, it is projected that as many as one-third of all people – almost 4 billion – will be African.
01:49 - Are these numbers sustainable?
A nuanced question. Experts like Paul Ehrlich argue that the population of the world has long since surpassed optimal levels, though critics counter that consumption is as important as population levels.
Some believe the very argument about overpopulation is controversial as it tends to point the finger at poorer parts of the world with large growth rates, and not at richer regions, which use disproportionately high amounts of resources.
02:18 - What influences fertility?
The fertility rate is the number of children born for every woman of childbearing age in a population. The things that tend to affect it include female empowerment, wellbeing and the status of children, technological and economic changes, and opportunities for family planning.
The level of education in a society – of women in particular – is one of the most important predictors for the number of children families have.
Africa has the lowest percentage of women using contraceptives, and the highest unmet need in the world. Despite this, some African countries have made the biggest leaps in contraception use over the past 40 years and are projected to make the greatest gains in the next 15.
04:06 - If birthrates have fallen so far, why is the population still rising fast?
Of course, fertility rates are just half the story. People are living longer – far longer in some parts of the world. About 55m people die every year, which is less than half the number who are born.
The number of children who die before reaching their fifth birthday has fallen to an all-time low: it is currently less than half what it was in 1990.
A child’s chance of survival is still vastly different depending on where they are born.

Research: Vitor hugo Lizardi Leonardi

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Bethoven's 5 Secrets
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