After the Spike by Dean Spears and Michael Geruso review – the truth about population

The global population is currently over 8 billion and is projected to reach 10 billion in the coming decades. Many people are concerned about this growth due to issues like climate change and overcrowding. However, according to academics Dean Spears and Michael Geruso, depopulation is a more significant concern. Birth rates have been declining globally for centuries. Over half of all countries, including India, now have birth rates below replacement levels. While the total population has been increasing due to reduced mortality, a peak is expected soon. This peak will be followed by a steep decline in population. The authors refer to this phenomenon as the "spike." They argue that we should not celebrate falling populations, implying that depopulation poses its own set of challenges.