British Opinion or a Tiny (Somewhat Biased) Snapshot?

An article has been published, trumpeting that Britons are concerned that government hypocrisy will affect the public's willingness to change their own behaviour, in order to tackle the climate crisis. The article also points out there is doubt that the Cop26 commitments can be met, unless they are legally binding (https://www.theguardian.com/environment/2021/dec/28/britons-think-politicians-hypocrisy-will-hamper-tackling-climate-crisis). This all sounds very definitive. The 'views' are, however, actually based on a first collation of views from the Net Zero Diaries, organized by the consultancy 'Britain Thinks'. The Net Zero Diaries is a focus group of 40 individuals who, prior to Cop26, kept accounts of news events they had learned about and their everyday 'climate encounters'. The diarists also heard from a range of experts on environmental topics. The 40 individuals were reportedly selected to include participants with a strong interest in the environment and others who were just general consumers. The 'analysis' frequently contrasted these 'two groups'. One has to have reservations about whether such a tiny sample is, in any sense, representative of wider public opinion. One thing seemed, however, to be clear. None of the Net Zero Diarists were exactly certain what had happened, in Glasgow, at Cop26. I suspect that this, at least, is likely to be the case for the vast majority of the general public.