For many years, anyone associated with physics on tv or radio (including me) got regular e-mails/letters from people convinced they’d disproved Einstein’s theory of relativity, rewritten quantum mechanics, or invented a perpetual motion machine. They always involved crazy assumptions, (sometimes spectacularly) incorrect maths & an unwillingness to learn the basics.

Now there’s a whole new class of these e-mails from people claiming to have “solutions” to climate change, with all the same flaws.