From Estonia to Antarctica, this once-pagan symbol has taken on many strange forms. In December 1848, an illustration showed Queen Victoria, Prince Albert, and their children admiring a Christmas tree ...

“I saw in Louisiana a live-oak growing / All alone stood it, and the moss hung down from the branches.” —Walt Whitman, Leaves of Grass, 1860-61 More than 150 years after Whitman wrote those lines, the ...

The Oklahoma Corporation Commission approves PSO’s request to purchase a power plant in Jenks. PSO first asked OCC to buy the Green Country Power Plant from Tokyo-based J-Power back in September. The ...

The Board of Pakistan State Oil Company Limited (PSO), the country’s largest oil marketing company (OMC), has approved the winding up of its wholly-owned subsidiary, PSO Venture Capital (Private) ...

TULSA, Okla. — Public Service Company of Oklahoma (PSO) is warning customers of a utility scam going around Oklahoma. They state that recent reports show that individuals are posing as utility ...

PSO received final approval for a rate hike of $12 a month for the average residential customer from the Oklahoma Corporation Commission. But, because fuel costs to generate electricity are down, the ...

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 ...

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 ...

Bristlecone pines in the western U.S. have been alive for nearly 5,000 years, but an upstart Patagonian cypress challenges that record. This 1,400-year-old bristlecone pine on Mount Washington in ...