Findings in South Africa show that innovation among early humans was not primarily driven by climate change. Up until now climate change has frequently been considered a primary driver of innovation in the Stone Age in South Africa. Putting this theory to the test, however, the researchers found that remarkable cultural and technological innovations seen in the sites in South Africa cannot be linked directly to climate shifts. Link http://phys.org/news/2016-09-climate-important-technological-stone-age.html