>What is a sustainable global population? How many people can we sustain?
>”The biggest single challenge facing the Earth…is not global warming. That is a secondary challenge. The primary challenge facing our species is the reproduction of our species itself.”
Boris Johnson, The Telegraph
These are the forecasts for population growth up until 2050. The world’s population growth rate peaked in the early 1970s. The global population doubled from 3 billion in the 1960s to 6 billion in mid-1999, and continues to rise — but at a slower rate. The question is where on that chart above should we draw a line, saying ‘population must not exceed!’?