Global Warming Policy Forum, GWPF, Christopher Booker, British newspaper columnist, Irving Janis, psychologist: The bizarre issue of climate catastrophism has been around sufficiently long that it has become possible to trace its history in detail. This new report published by the Global Warming Policy Foundation (GWPF) shows that both the science and policy of the climate debate are shaped and driven by an almost flawless example of classical Groupthink. This is invariably what happens when human beings get carried along by the crowd, simply because they have lost the urge or ability to think for themselves.”