How these hypocrites get away with it I'll never know.
At a recent dinner at the University of Oxford, a senior researcher in atmospheric physics was telling me about his coming holiday in Thailand. I asked him whether he was concerned that his trip would make a contribution to climate change - we had, after all, just sat through a two-hour presentation on the topic. "Of course," he said blithely. "And I'm sure the government will make long-haul flights illegal at some point."
I had deliberately steered our conversation this way as part of an informal research project that I am conducting - one you are welcome to join. My participants so far include a senior adviser to a leading UK climate policy expert who flies regularly to South Africa ("my offsets help set a price in the carbon market"), a member of the British Antarctic Survey who makes several long-haul skiing trips a year ("my job is stressful"), a national media environment correspondent who took his family to Sri Lanka ("I can't see much hope") and a Greenpeace climate campaigner just back from scuba diving in the Pacific ("it was a great trip!").