David Franklyn from Argonaut Funds Management joins AUSBIZ for a discussion on what he expects to be a decade long transition to green energy. Investors often look at the players in the lithium, copper and nickel space. But rare earths will also be the key focus over the next 10 years. What to look for? He gives his thoughts, starting with Pilbara Minerals. Find out why Sandfire Resources (SFR) and De Grey Mining (DEG) are also on his buy list.