Waves of Malthusians

Two visions of the future were unfurled this month. The first was a study from the University of Washington, which showed population was in rapid decline in many countries of the world. The authors suggested world population would peak at around 9 billion, sooner than the UN had predicted. The decline in national populations could, the authors suggested, even lead to nations competing for immigrants from Sub-Saharan Africa to supply the work-force for…