The festive White House Christmas Tree in Washington, DC. The theme for this year's holiday decorations is “Season of Peace and Light.” Photo by Anna Moneymaker. From the “most famous” (a disputed ...

Christmas trees are the centerpiece of a holiday celebration. Every year, between 25 and 30 million Christmas trees are sold in the United States, according to the National Christmas Tree Association.

Martina Egedusevic receives funding from the Scottish Forestry Trust. Daniel Green works for Heriot-Watt University as an Assistant Professor in Nature-based Solutions. He is also a Research Associate ...

Charles Marty does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

All species on Earth, both living and extinct, are related. We know this because of a biological tool called the tree of life. This "tree" takes the form of a diagram that maps the relationships ...

Last summer, a fire tore through the Hawaiian island of Maui, killing more than 100 people and razing thousands of buildings and homes. The disaster was one of the deadliest wildfires in American ...

Ten months ago, a ranger on the Hadrian’s Wall Path discovered a shocking crime: The widely loved Sycamore Gap tree had been chopped down. Fans mourned the loss of a beautiful landmark; arborists ...

CAMDEN, Maine — Suspicious deaths in an idyllic seaside community and detective work that points to poison sound like themes from a classic murder mystery. But the victims in this Maine whodunit were ...

From microbes to four-legged critters, dead trees play an essential role in a forest’s ecosystem. Experts say it's rare that removal is necessary. Letting dead trees, like this bristlecone pine in the ...

When a neighbor’s tree hangs over your property it can be a nuisance—and even cause damage. But tread carefully before you trim it. Sometimes it seems like living in a society would be much better if ...