Sustainability has emerged as one of the most dominating trends this past year, with greater focus on clean and renewable energy. For Laurence Kemball-Cook, founder of UK-based Pavegen, which produces tiles that harness kinetic energy to power streetlamps, it is footsteps that can provide clean energy to power a city. In this short podcast, Kemball-Cook outlines his journey to create a prototype and launch his startup and the need to become more sustainable.