trees

Forest managers in north Idaho and western Washington will be closing some popular camping areas this year. They say nearby trees are infected with root rot and post a threat to campers.

Like other animals and many living things, we humans grow when we're young and then stop growing once we mature. But trees, it turns out, are an exception to this general rule. In fact, scientists have discovered that trees grow faster the older they get.

Once trees reach a certain height, they do stop getting taller. So many foresters figured that tree growth — and girth — also slowed with age.

U.S. guitar makers are under scrutiny these days because of the rare woods they sometimes use. One of those prized woods is found only in the Pacific Northwest.

Ancient Ritual Kept Alive Through Northwest Trees

May 31, 2013
Courtesy of David Bolnick

There are about 1,000 trees in the Northwest that share something in common. You’d never guess what it is just by looking at them. Some are tiny fruit trees. Others are towering cedars. But, under the soil, they’re connected to the same ancient ritual.

Scientists Peek Into The Hidden World Of Tree Roots

May 30, 2013
Buzz Hoffman

When you think of a tree, you probably think of the trunk and all those parts you see above ground. But there’s a whole lot more going on under the soil than meets the eye. Scientists are now digging into the hidden world of tree roots in an effort to illuminate some unexplained mysteries.