Bok
11-08-2012, 10:54 PM
Newly documented climate shifts helped shape Classic Maya destiny
More... (http://www.sciencenews.org/view/generic/id/346350/title/An_ancient_civilizations_wet_ascent%2C_dry_demise)
More... (http://www.sciencenews.org/view/generic/id/346350/title/An_ancient_civilizations_wet_ascent%2C_dry_demise)