Vietnam store makes Christmas tree from cellphones

(AP) -- Southeast Asia is closer to the equator than the North Pole, but an electronics store in Vietnam is ringing in the holidays with a 15-foot Christmas tree made from more than 2500 unusable cellular phones.

Is root grafting a positive, cooperative behavior in trees?

Trees are often viewed as individuals that compete with one another for access to limited resources. But could trees in stressed environments actually benefit from positive, facultative interactions? The authors of a new ...

Storing seeds for a rainy day -- or in this case, a fire

As mountain pine beetles march across the forests of western North America, these insects may kill millions of pine trees during a single outbreak. A rise in overall temperatures over the past several years has increased ...

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