The global population growth rate is predicted to take a drastic downward turn, with experts believing that major countries such as Japan and Italy will see their populations halve by 2100. This is an unprecedented problem that could negatively impact society as a whole if the trend continues. The necessity for the world to plan and prepare for this outcome has become increasingly clear as global trends solidify. 

Why the Sudden ‘Baby Bust’?

In the 1950s, women were having an average of about 4.7 children in their life span. In today’s world, women are instead averaging 2.4. The causes for this turnaround include increased educational opportunities, greater numbers of women in the workforce and increased access to contraceptives. There seems to have been an attitude change toward parenthood in recent years. In more developed countries, the roles of women have turned in favor of being outside the home, leaving less time for children. This contrasts starkly with historical norms, where women stayed home to take care of the family and house while men left to go to work. 

What Are the Global Consequences?

While an initial evaluation might suggest that a smaller population would be better for the environment, professor Christopher Murray of the University of Washington suggests that this would lead to an “inverted social structure” where there are more older people than young. This raises questions about who will pay taxes and take care of the elderly. These are issues that the younger generations will have to worry about as they reach adulthood. “We’ll have to reorganize societies,” Murray says, in order to make current population trends sustainable. 

The world’s changing population numbers could lead to a shift in the world’s dominant powers. For example, India is set to replace China as the world’s most populous country as China faces a population decline as soon as 2024.  By 2100, India’s population would be followed by Nigeria’s, China’s and the United States’. 

Why Nigeria?

As COVID-19 and other health challenges ravage developing countries, access to contraceptives and other family planning becomes limited. This leads to more pregnancies in places such as sub-Saharan Africa, which is set to “treble in size.” Africa’s forecast for rapid growth calls attention to the current social situation regarding racism, with Murray stating that “global recognition of the challenges around racism are going to be all the more critical if there are large numbers of people of African descent in many countries.”

This shift in global power is expected to create issues surrounding development, social status and racism. Especially in the current social environment, racism could become one of the largest issues if these predictions prove to be true. 

What is Being Done to Prevent Population Decline?

Countries such as the United Kingdom have incentivized and increased migration. However, this is only a temporary fix as most countries begin to drop in population. Other countries have increased paid maternity and paternity leave, but have still seen few shifts toward larger families. Sweden has managed to “drag its rate from 1.7 to 1.9” while Singapore still has a rate of 1.3. Women simply cannot be expected to increase the number of  children they have due to policy changes, and current trends show that this attempt will not be enough. 

If the global reproductive rate drops to the predicted 1.7 by 2100, population extinction could become more of a legitimate concern. The 2.1 threshold, which is necessary to sustain the world’s current population, is instead being used as a target for future growth. Ultimately, though, young adults need to start  planning for a future where society’s age makeup is inverted.