It seems that they are not metal and are a composite construction built to be as strong as possible - creating recycling problems! So just imagine all those blades that have caused so much disruption being taken down - and then what?
https://www.bloomberg.com/news/featu...p-in-landfills
If they can't be recycled then they need to be repurposed... Just needs someone with a bit of imagination.
BBC covered this topic a few days ago https://www.bbc.co.uk/news/business-51325101
paddles for giant kayaks perhaps
500 man bobsleigh team
I've noticed some of the traditional Caithness flagstone dykes are in a pretty poor state of repair. You count fairly cover a bit of distance of you reinforced the flags with blades.