We Were Not the Only Humans Facing Climate Change

One of the most pressing issues that Humanity faces today is the issue of Global climate change. However, Humanity has faced climate change before and it has had a significant impact. The human race has evolved and changed because of global climate change.

The different climates on the earth have changed, where hot climates have cooled, and cool climates have gotten warm in a matter of a few years and early man has had to adjust to these changes. For some example when wet climates dried out in a few years and massive fires happened, or floods in other regions many of animals in the regions died out, along with many early humans. When there is such a quick and large population decrease different traits become more important. It was during times like these where early hominids developed better hunting skills and tools that helped them cope with the environment that they have been given after being forced into the situations where they had to work on cooperation and innovation in order to survive. Granted, a tool might be considered a sharpened stick or a sharp rock.

These changes in climate happened many times, and every time there was an effect on early man. the biggest effect that it had on early mas was when the ice ages started happening about 2.5 million years ago, brain size of early man started to increase. According to what we know today australopithecine ancestors had the brain the size of an ape, and it did not grow for about ten thousand years. Until ice ages started to occur and then the Hominid brain grew.

http://www.press.uchicago.edu/Misc/Chicago/092011.html