I had the pleasure of talking with a neighbor yesterday about the plight of hemlock trees in the Southeastern US. Apparently there is an invasive insect that is killing these trees by the thousands. The US spent millions trying to figure out how to stop this pest, however this technology is only being used on private lands. The neighbor explained to me:

"You know it's not just the hemlocks that will die. Over ten thousand species of plants and animals depend on the unique climate that the hemlock provides. People think the forest is composed of many seperate organisms. It really is just one big organism, composed of many parts. No more hemlocks, no more trout."