THERE can perhaps be no more fitting tribute to the great campaigning journalist and sceptic Christopher Booker who died this summer than the repeated publication of his work. Right to the end of his long and distinguished career he kept his finger on the pulse of social change and mass media manipulation. Last year he wrote a seminal report on the climate change debate for the Global Warming Policy Foundation. It was titled Global Warming: A case study in groupthink.

In it he demonstrates how both the science and policy of the climate debate are shaped and driven by an almost flawless example of classical groupthink. A film setting out the broad argument can be viewed here:

You can download a copy of the full report here.