Global Trends 2030

A new report from the Institute for Security Studies - - Global Trends 2030.  A key point of the study for engineering - - the ranks of the global middle class will swell from about 2 billion today to 3.2 billion by 2020 and 4.9 billion by 2030.  The 4.9 billion will be out of a total global population of 8 billion.  This will be the first time in human history more people will be middle class than poor.