In a recent Debunking Economics podcast Steve Bannister explained his climate modelling and how existing energy technologies won’t scale enough to save the planet. Omar Cheema, managing director of Vivantive, disagrees. His company provides advice on clean energy projects for multinational corporations, governments and investors. He says solar power is already providing an efficient source of energy, the obstacles are geopolitical, vested interests and the resistance to provide the necessary capital for regions that could move quickly on solar.