How did climate change influence the rise of ancient Egypt

Climate change today is seen as something that can bring down our societies and a potential threat to cities and civilization. While that has some truth to it, the fact is climate change is also likely a trigger for how our modern societies arose. In different parts of the world, major complex societies may have been influenced by climatic and various social factors interacting in a complex web of influences. This could have been the case for ancient Egypt as well.