Bill Gates and Hans Rosling addressing the 2012 Global Poverty Ambassadors and students at the LSEBill Gates and Hans Rosling addressing the 2012 Global Poverty Ambassadors and students at the LSE25 January 2012Bill Gates, Professor Hans RoslingBill Gates and Hans Rosling addressing the 2012 Global Poverty Ambassadors and students at the LSE25 January 2012Bill Gates, Professor Hans Rosling