My colleague Linda was kind enough to share a nifty youtube video about how a mundane 'waste' has great potential to solving one of the problems we face today as earthlings. I am very impressed.
I save my hair and give it to the birds for making nests. Same can be done with scraps of yarn. I can see how the sheep industry can be a great asset; just think of all the second cuts, belly hair, and the skirted fleece!