There is a lot of concern about using wood as a building material.  In many cases it is no more environmentally friendly than commercially produced food-- and sometimes worse.  But that doesn't mean that it has to be.  

I have the privilege of managing a tree farm and operating a portable sawmill,  The tree farm (part of the American Tree Farm System) doesn't have the SFI stamp of approval but, like nearly all tree farms, is held to a much higher standard of taking care of the woodland so it can be passed down through the generations.  This means cutting the dead, diseased, and cull trees that are the result of previous logging (before my parents purchased the land), and milling them for lumber that mostly gets used within a 50 mile radius.

Before buying lumber at the box store (even if it has the SFI stamp), consider purchasing from local sawmills, or find a local tree farm and find out where they sell their logs.

A lot of the wood I mill comes from urban tree care services.  It is a lot easier to get logs out of the woods where you don't have to worry about putting divits in someone's lawn.  Still, I hate to see a good log go to waste.

On the mill