There is a simple rule of thumb for distinguishing between charlatans like the Net Zero Scrutiny Group (Report, 8 February), the European Research Group and anti-vaxxers on the one hand, and the science community on the other: charlatans only look for evidence that they are right; scientists are only interested in evidence that they are wrong.
• Marina Hyde (11 February) quotes an unnamed ally of Boris Johnson asking: “Do you want the Metropolitan police deciding who the prime minister is?” Recent experience suggests that they could hardly do a worse job of it than Tory party members.
• It is some time since we had news of San Serriffe. Is there enough time between now and 1 April for your journalists to visit and set our minds at rest regarding the effects of the rise in sea level? Has Covid arrived there? So many questions!
• A huge thank you to Stuart Heritage for his article listing the best CBeebies programmes (8 February). I had never heard of Hey Duggee, which was No 1 in his list, but I have watched it every day since. How it has brightened up my life. It is the best programme I’ve seen on television for ages.
Catherine Waterson (age 79)
Bishopbriggs, East Dunbartonshire
• Thanks to Judith Abbs for her praise of the recorder (Letters, 11 February). I shall now try to forget that the recorder is an ill wind that nobody blows good.
Honley, West Yorkshire
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