Like many contemporary social movements—#metoo, Black Lives Matter, the Women’s March—the environmental lobby has tended to create an atmosphere of unanimity. In its struggle to win public and elite opinion, it has frequently evoked “science” as something settled and immutable, warning that those who dissent are either self-serving or seriously deranged.

Yet in recent months, there has been growing criticism about the current green orthodoxy, including from people long associated with environmental causes. Read more