Could humans cause the end of the world? I started wondering this after I began learning more about declining fertility rates. Most people are familiar that world population has been increasing for quite some time now. The fallacy is that it will just continue to grow. The fact of the matter is, as one researcher put it, people are not breeding like rabbits, they just stopped dying like flies. The main factor in growing human population is that old people are living much longer than ever before.
According to this chart, fertility has declined sharply since the 1950s. From 1995 to 2010, fertility rates dropped by .43. That's just 15 years. If that trend continues from 2010 to 2025, the fertility rate worldwide will be just 1.93. If this is not reversed, the human world would be on a collision course to self-annihilation! Look how far we've come since the 50s! Our current fertility rate is less than HALF of what it was just a couple of generations ago.