A newly discovered population of white-spruce trees is advancing northwards in Arctic Alaska, driven by ecological factors that are associated with climate change at this latitude — including stronger ...

Blue spruce (Picea pungens f. glauca), also called Colorado blue spruce, is a beautiful tree with blue-gray needles. Being colorful and relatively drought tolerant, it’s a favorite of many homeowners ...

We were pushing through head-high willows along a brushy caribou trail, five days into our week-long trek across Alaska's Noatak valley, when my hiking partner, Brad Meiklejohn, startled me with a ...

MEDINA, Minn. — A line of severe storms that swept through Minnesota and Wisconsin on Thursday took down countless trees. But for one Minnesota family, the loss of a white spruce was too big to ...