As I stood among 50 or so old white men wearing suits in a private suite on the 10th floor of an elaborate glass building in central London, it is not long before I am approached by a member of the audience who wants to know how I heard about the event.
I was one of only a handful of women, probably the only person there under the age of 35. I was clearly not their usual attendee.
I was there to see The Uncertainty Has Settled, a documentary by self-labelled left-wing filmmaker and journalist Marijn Poels. The event was hosted by The Global Warming Policy Foundation (GWPF), an organisation that rejects the science of climate change.