Sustainable investing is fast becoming a mega-trend that cannot be ignored; it seeks to drive a positive social or environmental impact alongside financial results. Acronyms, used by investors can be very confusing; SRI for example has had various connotations since the 1970s. For more CNBC Africa’s Gugulethu Mfuphi’s chats with guests, Andrew Dittberner, Chief Investment Officer, Private Client Securities, Old Mutual Wealth, and Aileen Campbell, Chief Investment Officer at Adviceworx.