Tree trunks are more than just wood—they’re living records of everything a tree’s been through. From growth spurts to natural ...

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.

Every year, trees form new tree rings. Trees add a new layer of wood between the bark and the trunk each growing season, according to The Arbor Day Foundation. Trees can tell us so much about ...

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 ...

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, ...

"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 ...

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 ...

Hot history: Tree rings show that last northern summer was the warmest since year 1 The hottest summer before climate change was 246, but last year's was about 2 degrees Fahrenheit warmer.

Hot history: Tree rings show that last northern summer was the warmest since year 1 The hottest summer before climate change was 246, but last year's was about 2 degrees Fahrenheit warmer.