A tree during the winter months stands dormant, but during the spring (or during the wet season, in some areas), it begins to grow. It actually experiences a growth spurt—with new cells growing ...

Blue rings can weaken pine trees in boreal regions ... So, it's possible that cooling after large volcanic eruptions was one of the factors that gave rise to the blue rings.

But there's much more information to be gleaned from growth rings than simply a tree's age. This information comes to us through the science of dendrochronology. Tree rings can reveal more than ...

"We also know that, by and large, these fires were not the severe fires we're seeing ... Using a fire scar dataset known as the North American Tree-Ring Fire Scar Network, which originated from work ...