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Miscellaneous See other Miscellaneous Articles Title: Cumulative total humans on earth - 100-billion Thinking of all the millions and millions of people who have lived and died in the history of the world is mind-boggling innate of itself. But one famous estimate says that the people alive today outnumber all of those who have come before. The factoid, popularised in the 1970s, has again become a much-buzzed about rumour, since the United Nations recently estimated the world population swelled to seven billion. Scroll down for video It's a large world after all: There are some seven billion people alive on Earth in 2012 The population has grown a staggering amount in recorded history, due in part to technological and health advancements. But calculating such a staggering number of every person who has ever lived is a far more complex endeavour. The Population Reference Bureau in Washington, D.C. sought to put a concrete number to every human who has graced the Earth – no doubt a daunting feat. The demographics bureau says that ground zero for counting is when humans first evolved – around 50,000 years ago. Welcome: Danica Camacho, born last October, was the Philippines' symbolic 'seven billionth baby', as part of the U.N.'s seven billion global population projection The population at that point, they estimate, was only two. Fast-forward to 8000 B.C., and the population was 5million, with some 1.137million births between the dates. As the centuries roll on, there are exponentially more births, though the benchmarks get more frequent as accurate birth records become available. ‘Once you have written records, once you have censuses, when countries start collecting taxes, you start developing the written record,’ the PRB’s Wendy Baldwin told the BBC. Growing population: The Population Reference Bureau estimate shows that though the living population is in the billions, more than 107 billion have lived since humans evolved Growing population: The Population Reference Bureau estimate shows that though the living population is in the billions, more than 107 billion have lived since humans evolved More accurate records, then, become available by the early 1800s. Ms Baldwin said that while birth rates were incredibly high in earlier days, so were the death rates, and many people did not make it out of infancy or childhood to have their own children. And with an estimated seven billion people on earth, the living are nowhere near close to surpassing all of the dead – the Population Reference Bureau estimates that approximately 107 billion people have ever lived. By those numbers, there are 15 dead to every single person alive today, according to the BBC. Read more: www.dailymail.co.uk/news/...-Earth.html#ixzz1lgEr82sA Post Comment Private Reply Ignore Thread
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