Foods eaten by Ancestral Puebloans could illuminate climate change consequences Archaeologists studying three Southwestern Ancestral Puebloan sites are analyzing food webs to further understand the ecological consequences of modern climate change. http://www.upi.com/Science_News/2017/04/10/Archaeologists-untangle-the-complex-food-webs-of-the-Ancestral-Puebloans/5811491837653/