It isn't just an academic exercise to understand all the factors involved 800 years ago in the abandonment of the region; we are in the midst of a serious extended drought today, and there is a strong potential that the drought is related to climate change (in late June, Wupatki had only 15% of normal precipitation). The consequences of extended drought will occur whether politicians deny global warming or not. The Colorado River doesn't have enough water to meet demand in normal years. What happens when drought becomes the new normal? How will our society in the southwest cope?
Later on we stopped briefly at Sunset Crater, the possible cause of the "land rush". The cone in the background did not exist 1,000 years ago.