CLIMATIC EVENTS HAVE had an important impact on the geographical distribution of human populations in the past. Nowadays, the growing consensus among the scientific community on the reality of human-induced global warming has raised concern that millions of people could be displaced.

A Long History of Linkage between Climate and Populations

Population geography has acknowledged for many years the role played by climatic factors in explaining the history of population and the emergence of cities. Thus, for mankind, the passage across the Bering Strait to America 13,000 years ago was possible due to the low sea levels of the Ice Age, while the Medieval Climate Optimum which lasted between the 8th and 13th centuries stimulated the population of Polynesia by making navigation relatively easy, thanks to regular ...

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