There was a recent segment in a Radio 4 broadcast about wool being burnt in the UK because it wasn't worth selling: https://www.bbc.co.uk/programmes/m00106k3

Judging by this article this is because of the rise of mass-produced synthetic fibres and a collapse in the hospitality market due to covid: https://www.bbc.co.uk/news/uk-scotland-highlands-islands-581...

So much for science and the precautionary principle, economics and the power of the free market, politicians and regulation :(.