Tree rings serve as a natural archive detailing past environmental conditions and events. Scientists use these annual growth ...

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 ...

Tree cores pulled from some of the planet’s oldest trees have helped extend records of past weather.

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 ...

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A new 1,200 year-long time series based on tree rings shows that the current warming is unprecedented during this period. This is reported by researchers from the Swiss Federal Institute for Forest, ...

An international team of scientists have discovered a huge spike in radiocarbon levels 14,300 years ago by analyzing ancient tree-rings. The radiocarbon spike was caused by a massive solar storm, the ...

"The longer you can look back, the farther you can look forward," Winston Churchill proclaimed to the Royal College of Physicians in 1944, invoking a much older idea known as "uniformitarianism". This ...

Scientists use ancient tree rings and radiocarbon dating to date the Agios Vasileios palace, uncovering new details of its ...

Each spring, hikers flock to Figueroa Mountain, 30 miles northwest of Santa Barbara, to revel in the colorful displays of California poppies and purple lupine. But it’s the gnarled oaks of the rolling ...