Linen is terrible for actual use though. Requiring ironing is ridiculous; not only does that use a lot of energy, it takes a lot of time too. Sure, you could just not iron like the other poster said, but then your clothes look horribly wrinkled and unkempt, unlike with other fabrics that just don't have this problem. Finally, linen isn't warm at all. It's just a lousy fabric. There's a reason so much stuff is made of synthetic fibers like nylon and polyester now: it performs extremely well, it wears extremely well (i.e., it doesn't wear out quickly, so you don't have to replace it very often), it feels nice, it cleans easily, etc.
Oh yeah, I forgot to add: you can't wash linen! You have to dry clean it (or at least a lot of it). Dry cleaning is horrible for the environment, and uses a lot of nasty chemicals, and it's expensive too.
