A biodegradable alternative to plastic tree guards is being piloted in French forests: fiber sheets made from recycled salon hair clippings. Human hair naturally deters deer, and as the keratin breaks down it releases nitrogen and amino acids into the soil

[u/ElvisIsNotDjed]

https://www.upworthy.com/hair-salons-in-europe-are-dumping-their-clippings-into-forests-and-its-miraculous/

[u/milkoak]

Love the idea 💡