Furniture is, to me, like meat. Not great for the planet no matter how you look at it. Resource heavy but still something people really want. So, in furniture shopping, I've started to look for happy furniture. Its way better than factory farmed. I like my furniture to have roamed free - preferably through other people's houses and into antique fairs, thrift stores, consignment stores, and on Craigslist.
My most recent acquisition - bin table from a rural antique store (total bargain!), shoe basket from an antique fair and under bin basket free ranged for many years through my mom's house.
Not all furniture is that happy, though. If its not available second hand, furniture made from old furniture - or other things - is the still pretty happy. You know - upcycled, reclaimed? You can find such furniture at antique fairs and swap meets or, for those like me who like to let their fingers do the walking, on Etsy! That's right! I'm in the market for a coffee table. After finding nothing suitable second hand, I turned to Etsy. I had no idea the amount of furniture you could buy there made from reclaimed wood, reused metal, and upcycled bits of this and that. Bonus - I'm supporting a small farmer, er, artisan. Simple Internet searches can turn up small local showrooms of folks in your region doing the same thing.
Even though it seems impossible, not everything in the world is available on Etsy! Turns out some other medium sized and industrial farmers have turned to reclaimed and recycled as well. LL Bean carries a great line of partially reclaimed wood furniture that was made in the USA, so it was shipped halfway around the world. Crate & Barrel offers many pieces made from reclaimed wood or with other "eco-friendly" attributes.
Finally, even if you cannot have organic food, I mean, recycled furniture, at least it can be locally grown - or made. Maybe not in your city or even your state but I do feel a bit better buying Made in the USA furniture shipped across the country instead of across the sea. Plow & Hearth has a diverse line of well made Made in the USA products. I can attest to the quality as I own one of the dining room pieces. Sturdy as can be and a final solution when free range furniture failed me.