A Roanoke man has been reunited with a valuable ring he lost 15 years ago at a local Christmas tree farm. Wayne Corprew was ...

Tree rings of a buried subfossil tree in the Drouzet River. Radiocarbon spikes found in these rings revealed that the most powerful solar storm found yet occurred around 14,300 years ago.

Those years are marked with thick rings, the tree growing faster and for longer than in other years. Some years were harder. A drought began in 1571. In this core sample, ...

A study published in the journal Climate and Atmospheric Science looked at tree rings in the Pacific Northwest going back over 1,000 years—as far back as the year 950. The rings showed how the ...

Scientists can, with reasonable certainty, use tree rings to draw conclusions about individual years in the Northern Hemisphere (536 CE was the coldest, for instance, likely because of volcanic ...

Nearly 90 years ago, astronomer Andrew Ellicott Douglass founded the Laboratory of Tree-Ring Research at the University of Arizona, in Tucson.

"Disturbing" new research into the rings of millennia-old trees claims that mystery solar events occur every 1,000 years, can't be predicted and we have no idea what kind of damage they might ...

The oldest tree rings analyzed by the researchers came from a Douglas-fir that began as a seedling in the year 950 near Great Central Lake on Canada’s Vancouver Island.

The instruments back then were more often in the hot sun instead of shielded like they are now, and tree rings continue to show that it was about 0.4 degrees (0.2 degrees Celsius) cooler than ...

The tree-ring reconstruction and modern temperature readings show that 1979-2021 saw a sustained period of hot summers unrivaled for the last 1,000-plus years. Most of the hottest years have ...

Then, two weeks ago, nearly 15 years after he lost the ring, he got a call he was never expecting. “I mean, I couldn’t believe it. When I saw Joe’s Trees come up, of course, I had no idea.