'Remember it's not that long since scientists told us we were heading for a new ice age. They are now telling us that theory was wrong then so I don't propose to blindly trust them now.'
No they weren't - this is a myth.
It was only ever a small minority of climate scientists who thought the Earth was due to enter a period of cooling before the onset of another glacial episode. A short lived period of relative cooling in the 1970s wasn't well understood, but there was a theory that interglacials (such as the one we're going through) lasted about 10k years, and we were about 10k years into the Holocene interglacial - so the only way for temperatures to go was down and this might be the first sign of a new glacial advance. We now know that there is no such thing as a fixed length interglacial - they are much more irregular and tend to be much longer lived - this has now been resolved thanks to deep ice cores. We are now also much more aware how local cooling in the Pacific ocean can bring about cooler weather conditions across the globe over a period of years.
The majority of scientists were already warning that carbon emissions were forcing temperatures higher. There was no year from 1965 onwards where cooling predictions were more common than warming ones and they pretty much all stopped by 1977. The best summary of the research at the time:
Peterson, Thomas C.; William M. Connolley, and John Fleck (2008). "The Myth of the 1970s Global Cooling Scientific Consensus". Bulletin of the American Meteorological Society 89 (9): 1325–1337