Granted, trees grow without any help. But to bring you lumber and veneer, foresters find ways to grow them bigger, better, and forever. Here's how they do it, Once upon a time, most wood came from old-growth forests that had trees hundreds of years old. Now, due to past log-ging and conservation measures designed to protect old-growth forests, most wood comes from second- and third-growth forest land; that is, from trees that grew after logging activity. Some of this forest land belongs to the public as state and national forests.
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