Spruce refers to trees of the genus Picea. They're found in the northern temperate and boreal (taiga) regions of North America. Spruces can be distinguished from firs by their down-hanging cones ...

As the Arctic rapidly warms, sea ice levels are declining, leading to more evaporation from the open ocean and more snow throughout much of northwestern Alaska. The team could quantify the white ...

But Dial is finding young white spruce growing from seeds that must have traveled 5 to 7 miles—and over mountains, no less. The population isn’t so much moving north as it is leaping.

Our field study focuses on 700 white spruce trees spread along 1,500 miles of mountains between Canada and the Chukchi Sea. Russell, Colin, and I have each been to nearly all 700 trees to set up ...

White Christmas: It's been said "White Christmas" has been recorded more than 500 times. It also is the basis for a significant and intriguing footnote in American history: The song "played an ...

It was a tree disease known as spruce needle rust, which infects only the current year’s needles of white, black and Sitka spruce trees. [River Piracy strikes the Yukon] The orange powder is ...

The aforementioned champion white spruce in Koochiching County is the tallest in Minnesota at 126 feet tall. There's also an eastern white pine in Aitkin County near Glen that measures 121 feet tall.

White spruce trees dot the tundra in the Brooks Range. These trees are better able to survive harsh conditions due to heavy winter snowfall, a result of Arctic sea ice loss. (Photo courtesy Colin ...

Our field study focuses on 700 white spruce trees spread along 1,500 miles of mountains between Canada and the Chukchi Sea. Russell, Colin, and I have each been to nearly all 700 trees to set up ...

Dial's research focuses on the white spruce tree population. He says these trees are steadily moving farther north into the barren tundra of northern Alaska.