Sorry boys, but some of you are displaying incredible ignorance in terms of the ecoSYSTEM. It's a SYSTEM, not freestanding entities. Look at what's happening with foreign animal introduction and the loss of species in certain areas in terms of what it does to our ability to farm and produce food for an increasing population. Corporations do not have a right to destroy the planet to enhance the bottom line at the expense of the rest of the world. We can make guitars out of other woods.
If wood is renewable, sure, harvest it, replant. However, we can't go one detroying the environments that are home to the incredible variety of species that inhabit places like rainforests. You can't just replant and repopulate them once they're gone.
Species of plant an animal life are disappearing at an alarming rate annually. Some of them hold the keys not only to a functioning ecosystem, but to curing human diseases. I'll give you just one example: "Big" cats don't get lukemia. "Small" Cats do. Two branches of a very DNA related group of animals and one gets lukemia, the other doesn't. The secret to curing lukemia is in their genes - and yet we are systematically wiping out the large cat groups by destroying their habitat. Maybe when someone you love comes down with the disease you will finally have the insight to understand how we should treat the planet and it's species.
Get a clue, our survival depends on it.