During the time of Christ, the human population on Earth was at a steady 200 million. In the 1800s, at the height of the industrial revolution, the human population passed the 1 billion mark. But today, about 200 years later, the population boomed to be over 7 billion. And by 2050, it’s expected to rise to 9.7 billion.
You can extrapolate a lot from a demographic forecast like that. But one thing is for certain — it’s going to be raining cats and dogs.