El Nino has been a major driver of societal collapse, various catastrophes and cultural change in coastal Peru for millenia, but it isn’t the only culprit. In a new study, University of Maine researchers warn against over-interpreting the role climatic change, like an El Nino event, plays in societal and cultural transition.  Dan Sandweiss, a read more New study cautions over-interpreting influence of climate on cultural change and catastrophe