Al Gore and David Blood told us how it's possible to save the world while still making a lot of mone

Since leaving public office, former US Vice President Al Gore has been working on Generation Investment Management, an $18 billion asset manager that invests in what it considers sustainable companies. Generation has performed well. The company's public-equity vehicle returned about 17.5% after fees since September 2014, compared to the MSCI World index, which returned 6.6% over the same period. Gore teamed up with David Blood, former head of Goldman Sachs Asset Management. For...