ALBUQUERQUE, N.M. (AP) — Researchers at the University of Cincinnati say they have more evidence that Chaco Canyon in northwestern New Mexico was more than just an ancient gathering spot for Indigenous ceremonies and rituals... The researchers reported a gradual degradation of the surrounding woodlands beginning around 600 B.C., much earlier than previously thought... ...Amid the shift from people hunting and gathering to underatking agriculture, the researchers noted measurable changes — such as juniper trees decimated for building needs, food resources and firewood for cooking. “This is a very arid area,” he said. “In arid woodlands, the trees are essential...