According to the World Bank , human-induced or “ anthropogenic ” climate change may raise the earth’s temperature by two degrees in the next 20 or 30 years. Once four degrees is reached—which may arrive by the end of this century—the polar ice will be gone, sea levels will have risen dramatically and extreme climate disruption will be a fact. But climate scientists aren’t sure what will happen in the gap between these two scenarios. No-one knows where the point of no return is located, nor what the consequences will be of current climate changes for the human species and the planet. In effect, humanity is playing a game of Russian roulette. So what’s getting in the way of taking the necessary action? To find out some answers to this question, I hosted a discussion in November of 2014 between George Marshall , the co-founder of the Climate Outreach […]