We know the Earth's human population is rising unsustainably, in 2011 it hit 7 billion, so it is important to understand the ratio of people being born to those dying.
Asked by: Anthony Perry, USA
According to the World Bank, for every 1,000 people in the world, an average of 7.748 people will die each year and 19.349 will be born. That’s a ratio of about 2.5 births for every death.
Those figures are from 2014 but both are slowing at similar rates, so the ratio hasn’t changed much in the last 10 years.
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Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.
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