While the world's population is expected to continue growing for decades to come, many countries face serious demographic headwinds, with low birth and immigration rates leading to aging and shrinking populations.
Japan is facing a "demographic time bomb" as young people in that country forgo having children. The BBC recently highlighted attempts to slow Bulgaria's population decline — the fastest in the world — by improving educational and economic opportunities in the country, making it more attractive for younger workers to stay rather than immigrating elsewhere in the European Union or to other countries.
