
For 200 years, we’ve been warned of unchecked population growth and how it leads to environmental instability. On the other hand, today some countries face decreasing populations, alongside increasing proportions of elderly people, causing economic instability.
These two facets of population crises — explosions and declines — are occurring in different parts of the world, and have a global impact on the environment and on economies. Discussions about achieving economic and environmental sustainability must consider population changes, technology and the environment, given these concepts are closely interwoven.