Los Angeles Times: A several-degree increase in temperature allowed the Incas to move higher into the Andes mountains, opening up new farmland and providing a water source through the gradual melting of glaciers at the top of those mountains, paleoecologist Alex Chepstow-Lusty of the French Institute of Andean Studies in Lima reported online Monday in the journal Climate of the Past.
Global warming played a role in Incas' rise
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