On Monday, 31 October, just before midnight in the Philippines a baby was born, Danica May Camacho, who became the official seven billionth person born. In 2000 the population on earth was 6 billion people. How extraordinary to think that it took 123 years for the world’s population to go from one billion to two billion but only 12 years to grow from six billion to seven billion? The world’s population increases exponentially every year with 2.3 billion people expected to be born in the next 40 years – around 200,000 babies born every day. The planet is expected to hit 10 billion by 2083.