Do you believe that humans can harvest forest resources in an environmentally friendly way? Or, should national forests be left in their natural state in which resources are not used to benefit humans? To which side are you inclined?.
Check these sites for ideas.
http://www.deq.state.va.us/vanaturally/guide/forests.html
http://www.oregon.gov/ODF/STATE_FORESTS/FRP/RP_Home.shtml