Prince Charles warned in a speech on Thursday that if a “courageous and revolutionary” approach to tackling climate change is not undertaken, “the result will be catastrophe for all of us but with the poorest in our world hit hardest of all. In this sense it is surely comparable to war.” Also this week, Virgin Group big gun Richard Branson suggested at a United Nations conference that an “environmental war room” be set up to combine “entrepreneurial muscle, the best possible data, and the power to mobilize resources and influence policy.” OK, so we’re at war with the climate; the question is, who’s winning?