Rachel Martin: Don't pull the wool over my eyes - it's criminal not to value nature's cosiest fibre

When polyester production releases around 700 million tonnes of emissions a year, it seems almost criminal that a natural, biodegradable resource like wool is so quickly shunned.

In a week where policy-makers and the hoi polloi are pondering how many shirts they need to pack for COP27, it feels almost feels like a parallel reality to see masses of shoppers queuing for hours to check out the racks of cheap polyester garbs at the reopening of Primark's flagship store in Belfast.

Granted, it comes four years on from the Great Primark Fire, which devastated parts of the city. But a lot has changed in that four years - both in society and our awareness of where the planet is heading in terms of global warming: We bring our own bags to the shops, drive electric cars, use water canteens instead of plastic bottles, and attempt to recycle anything and everything in sight - or at least claim to.