One man who was not rooting for Al Gore to win the Nobel Prize was Bjorn Lomborg. The smiling Dane is the anti-Gore. Unimpressed with An Inconvenient Truth , his new book challenges many of that film's alarming statements about global warming. Mr Gore and his admirers are paying no attention, needless to say, and that is a pity.

Lomborg's capacity to anger his opponents is limitless. Of course, he disagrees with them, an outrageous affront in itself. He says that the state of the environment is not dire. He also argues that cutting greenhouse gas emissions should not be the world's top priority, another scandalous provocation. He makes it worse by being pleasant and reasonable (not to mention Danish), turning up in T-shirt and jeans all the time, supporting his arguments with too many footnotes and acting in other ways designed to offend.