Thứ Năm, 21 tháng 7, 2016

NPR News: An Archaeological Mystery In Ghana: Why Didn't Past Droughts Spell Famine?

An Archaeological Mystery In Ghana: Why Didn't Past Droughts Spell Famine?
A terrible drought hit Ghana in the 1400s, far worse than today's conditions. Yet people had enough to eat, while today they go hungry. What changed? In a word, colonialism, a new study suggests.

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at July 21, 2016 at 02:16AM
Health & Science

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