A dinghy with 54 Afghan refugees landed on the Greek island of Lesbos in the winter of 2020. Credit: Aris Messinis/Agence France-Presse

“The story of the 21st century is less a story about exponential population growth than it is a story about differential growth — marked by a stark divide between the world’s richest and poorest countries,” Jennifer Sciubba, a professor of international studies at Rhodes College, writes in her new book, “8 Billion and Counting: How Sex, Death and Migration Shape Our World.”

In some regions, Sciubba continues,

Population pressures are blowing the top off of a pot already boiling with poor governance, civil war and environmental destruction. At best, there’s only dim hope for a peaceful future. When the pot boils over, countries across the globe feel the effects in the form of refugees and terrorist extremism.

The resulting turmoil is empowering the ethnonationalist right — propelling Viktor Orban’s re-election to a fourth term on April 3 in Hungary and Marine Le Pen’s 41.5 percent showing in the April 24 […]

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