Discuss the impact of climate change at the end of the 3rd millennium BCE on world history

Discuss the impact of climate change at the end of the 3rd millennium BCE on world history

Discuss the impact of climate change at the end of the 3rd millennium BCE on world history.

How did climate change cause the collapse of many established states, force technological innovations, and lead to population shifts?

Discuss at least two specific societies/regions of the world as evidence to support your answer.