Obviously you can add the reduced production due to Covid.
Well a number of things really – timber shortages are part increased demand, part covid and Brexit trade issues but also a bad (for timber harvesting) winter in Scandinavia. Similarly other shortages are fuelled by the severe winter in Texas which knocked out certain key refineries and factories that supplies raw ingredients for all sorts of plastics, paints, adhesives, fertilisers and so on – theres not a lot you can buy that doesn’t have some sort polymer – paint, print, ink, glue, solvent, plastic or whatever- involved in its production or supply chain
I did however see white dog shit a few days ago – I mean properly, surprisingly really white. So, you know, swings and roundabouts.