
The overpopulation poses at least two problems:
(1) The excessive growth of humanity is destroying natural systems across the globe. Five selfish and delinquent countries contribute to nearly 50% of the world's population (notably China, India, USA, Indonesia and Brazil).
(2) The mass migration of humans due to whatever cause (civil war, famine, climate change, natural disasters, sea rise, poverty, recession, the lure of a better life, whatever).
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