Holocene climate change and human societies. Lessons to learn from the past?

In 2016 a remarkable paper of Axel Timmermann and Tobias Friedrich in Nature linked climate, vegetation and human-dispersal models to understand how climate change may have triggered Pleistocene human migrations out of Africa. This large-scale study supports the view that climate may have been a key factor. How is the situation in the Holocene? Are there clear evidences for changes of human behaviour and/or evidences of adaptation of human societies after climatical impacts (cold events, draughts)? Is it possible to link climatical impacts with high probability to societal processes as migrations, collaps or others? Starting from selected case studies I will try to bring in some thoughts on how to enhance societal relevance of archaeological research related to past climate changes