While we are not in drought here in the Southeast at the moment (although abnormally dry conditions are expanding in the region due to lack of rainfall and warm temperatures), drought is never far from the mind of farmers. Jeff Masters of Weather Underground published a blog post earlier this month on some civilizations that fell apart due to long-term and persistent drought. You might enjoy reading it at https://www.wunderground.com/blog/JeffMasters/ten-civilizations-or-nations-that-collapsed-from-drought.
