MORE ON CARBON OFFSETS, at The Economist: “I find it hard to believe that Mr Gore has actually reduced his carbon output ‘as much as possible’—and if Mr Gore so believes, I invite him to take a train up to New York, where I will show him what a more carbon efficient lifestyle looks like. The carbon offsets, on the other hand, sound like a very reasonable plan. That is, they did until I began thinking about them. . . . Obviously, the same is true of individual conservation efforts. Thats why any attempt to abate global warming has to be massive. Huge numbers of people in the rich world have to fly less, drive less, consume less, and live in smaller houses. If Mr Gore really wants to encourage this (as I do), then he should try leading by example. ”

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