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Hotter Weather Fed Growth of Incan Empire Monday, July 27, 2009 - Ehud Rattner Home >> Headlines >> General Science   
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The meteoric rise of the Incan empire between 1400 and 1532 was driven by a sustained period of warmer weather, new research on Peruvian lake sediments suggests. The sediments, from a core going back 4000 years, contain biological and organic evidence revealing sharp changes in land use and agriculture around Marcacocha, a small lake near Cuzco at the heart of the ancient empire. The higher temperatures, starting around 1150, ended thousands of years of cold aridity. (source: newscientist.com)
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