Are there really more people alive now, than have ever lived?

This “fact” was repeated in many places recently when the world’s population reached the seven billion mark. It was a significant moment and some sought to emphasise the population explosion by repeating this startling piece of information. For the statement to be true, however, there would obviously need to be fewer than seven billion people…

Can the world sustain the current population growth?

Last month the global population of humans hit seven billion; an extra billion people since 1999. Given that it took until 1804 to reach one billion, the recent upsurge would suggest serious problems in future. The immediate concern, however, isn’t actually space. Standing shoulder-to-shoulder, the entire world’s population could fit within the 1,300 square kilometres…