I have a poplar tree in my backyard that is 1 1/2 years old. Over the past year and a half it has done a few funny things. Upon planting it, the leaves went yellow in the summer. I think we were over ...

DULUTH — It’s been said that the true meaning of life is planting a tree "under whose shade you do not expect to sit," a hint, of course, that you’ll likely be dead before the tree gets that tall. But ...

SEBEKA, Minn. -- While researchers rush to develop new biomass sources for cellulosic ethnanol, Minnesota for a decade has been working on short-rotation, intensive of culture trees for energy and ...