When I was still a child, at the age of eight, I learnt in geography that there were still under three billion people living on the planet. The amount of life concealed by this number meant nothing to me. Now I’m 50 years older and, in that time, the world’s population is supposed to have almost trebled. Is that right? Do you understand what I have written there, and am myself trying to understand? There are now seven and a half billion people living on our beautiful blue planet EARTH. And the number isn’t falling. I have another look at …
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