“Hell, we buy fire insurance based on a 1 per cent chance,” he said. “If we’re going to be risk averse … we cannot dismiss the possibility of potentially catastrophic outliers and that includes Greenland and West Antarctica [ice sheets breaking up], massive species extinctions, intensified hurricanes and all those things. “There’s at least a 10 per cent chance of that. And that to me for a society is too high a risk … My value judgement when you’re talking about planetary life support systems is that 10 per cent, my God, that’s Russian roulette with a Luger.”

Source: Sydney Morning Herald