Learn more about these signs of summertime cold, perhaps tied to volcanic activity in 1877 and 1902.

These rings are not just a visual anomaly but serve as natural archives of past cold summers. Researchers studying samples from Scots pine trees and juniper shrubs on Mount Iškoras in northern Norway ...

Scientists studying pine trees and juniper shrubs in northern Scandinavia are revealing the weather of the past by looking at tree rings — which can tell us far more than just the trees’ age. ‘Blue’ ...

Strange blue rings found in Scandinavian trees leave scientists perplexed - Rings hint at unusually cold summers in Norway between 1877 and 1902 ...

In Norway, scientists have found blue rings in trees that hint at how volcanic eruptions disrupted growth throughout history.

A new study published in Frontiers in Plant Science assessed samples from 25 Scots pine trees and 54 common juniper shrubs from a site high on Mount Iškoras in northern Norway. These samples and ...

In order to grow properly, trees need an adequate period of warmth during their growing seasons; otherwise, the cell walls [… ...

In the frigid landscapes of northern Norway, an unusual phenomenon etched ... A close-up of a young green pine tree (main) and an image of a volcanic eruption (inset). A close-up of a young ...

This is the first installment in a series of articles republished from The Mandonian, a magazine published by the Minnesota and Ontario Paper Company. The Mandonian, August 1949 This year Mando ...

DNR Staff Report More and more homeowners are becoming alarmed over the “worms” that are devouring the needles of their pine trees, according to the Minnesota Department of Natural Resources .