I found the facts compelling in Jayme Otto's article, "The Sustainable Fashionista," in Breathe Fall 2009 http://www.readbreathe.com/the-sustainable-fashionista/.
The percentage of clothing in municipal waste. The percentage (much smaller than I thought) of donated clothes thrift shops can actually use and why. How a very eco-conscious retailer has made the hard decision that natural dyes aren't commercially viable for them. The number of deaths linked to endosulfan on cotton. How even a low-carbon T-shirt travels the world.
Let me just repeat the one of my goals with handspinning is to make items I can wear.