From the BBC Business Daily:

At the Future in Review (FiRe) conference in California, Lesley Curwen hears from innovators on a mission to change the world. Tony Lammers of Mar Systems tells us about technology to remove dangerous pollutants from drinking water. Philippa Lewis from Simavita explains how electronics can help elderly people manage incontinence. And we hear how cars could be propelled by oil made from algae, with Dan Simons of Heliae Technology Holdings. Originally aired: 5-24-2012