So, back in 2010 academic research was published by researchers at Manchester Business School and Manchester Metropolitan University.
You can read the whole thing here.
MCFly sez: We are an exceptionally technologically advanced, and even more exceptionally stupid species. We seem utterly determined to kill ourselves and take everything else down with us. And we have the tools to do the job. The second half of the 21st century is going to make the firstst half of the 20th look like a golden age of peace love and understanding.