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dendrochronology

A partially missing stone archway is flanked by stone lionlike statues
Posted inNews

Tree Rings Hint at the Fall of the Hittite Empire

by Humberto Basilio 4 May 202319 May 2023

The Bronze Age civilization adapted to changes in climate but suffered during a prolonged crisis.

A person in shadow stands next to a mountain hemlock tree at Crater Lake, twisting a long coring instrument into the tree.
Posted inNews

In the Pacific Northwest, 2021 Was the Hottest Year in a Millennium

Sarah Derouin, Science Writer by Sarah Derouin 2 May 202319 May 2023

A 1,000-year temperature record shows unprecedented warming in the Pacific Northwest, and new modeling predicts the likelihood of future heat waves in the decades to come.

A photo looking up between tall trees with red bark and green canopy.
Posted inNews

Dating the World’s Tallest Trees

Katherine Kornei, Science Writer by Katherine Kornei 27 April 202319 May 2023

Scientists analyzed more than 1.2 million trees to assemble chronologies of annually dated rings, which will inform fields ranging from climate science to seismology.

Cross sections of several logged trees reveal banded patterns of dark and light wood
Posted inResearch Spotlights

Tree Ring Width Predicted by Machine Learning

by Morgan Rehnberg 28 March 202328 March 2023

When predicting a tree’s annual growth, consider the whole weather system and not just the sum of its parts.

Tree rings shown on a cut piece of timber
Posted inFeatures

Finding Climate History in the Rafters of New York City Buildings

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 22 February 202322 February 2023

When renovating in the Big Apple, you might acquire a several-hundred-year-old climate database along with your new kitchen and bath.

A person stands amid tall trees on a lush green mountainside.
Posted inResearch Spotlights

Amazon Basin Tree Rings Hold a Record of the Region’s Rainfall

Rachel Fritts, Science Writer by Rachel Fritts 11 October 202221 June 2023

New research provides a 200-year reconstruction of interannual rainfall in the Amazon basin using oxygen isotopes preserved in tree rings in Ecuador and Bolivia.

Logs, sticks, and branches that washed up on the shores of Iceland are piled on a beach.
Posted inNews

Melting Sea Ice May Mean the End of Driftwood in Iceland

Richard Sima, freelance science writer by Richard J. Sima 25 August 202224 March 2023

Driftwood floats thousands of kilometers from Siberia to Iceland, but it may drift no longer by 2060 due to climate change.

Photomicrograph of tree ring cell density from open to tight showing the repeating pattern of seasonal growth.
Posted inEditors' Highlights

How Hot Was the Summer of 1783 Really? Trees Tell Tales

by Sarah Feakins 20 April 20224 January 2023

Volcanoes, heat waves, and tree rings – getting the seasonal story straight – a new study finds that volcanic fog lowered summer tree ring density despite the heat.

A river in Katherine, Northern Territory, Australia
Posted inResearch Spotlights

Tree Rings Reveal a Puzzling Trend in Monsoon Intensity

by Saima May Sidik 31 March 202221 July 2022

Tree rings confirm that in northern Australia, the past 40 years have experienced more rain than any similar length of time in the past 600 years.

A photo of a ponderosa pine forest in Arizona
Posted inNews

Tree Carbon Data That Ring True

by Nancy Averett 15 March 202215 March 2022

An international group of researchers may have found a way to better account for carbon storage in forests.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Geophysical Research Letters
“Neural Networks Map the Ebb and Flow of Tiny Ponds”
By Sarah Derouin

EDITORS' HIGHLIGHTS
Community Science
“Collaboration Helps Overcome Challenges in Air Quality Monitoring”
By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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