Perhaps you’ve wandered through a forest or strolled into a neighborhood park and found tree trunks — and wondered if counting the rings on a trunk is truly a way to know the tree’s age. “Most of us ...

The first thing we can tell from the rings is the age of the tree, simply by counting backwards from the outermost layer, the one laid down most recently. But the rings also vary in width from one ...

TUCSON — When Bryan Black accepted a post-doctoral research position at Oregon State University to study how fish grow, he hoped to apply his background in forest ecology to marine life. Black, a ...

Last summer, marked by deadly extreme heat and devastating wildfires, was the warmest in at least 2,000 years, according to new research, which analyzed weather data and tree rings to reconstruct a ...