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.
dendrochronology
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Melting Sea Ice May Mean the End of Driftwood in Iceland
Driftwood floats thousands of kilometers from Siberia to Iceland, but it may drift no longer by 2060 due to climate change.
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How Hot Was the Summer of 1783 Really? Trees Tell Tales
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.
Posted inResearch Spotlights
Tree Rings Reveal a Puzzling Trend in Monsoon Intensity
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.
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Tree Carbon Data That Ring True
An international group of researchers may have found a way to better account for carbon storage in forests.
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Supergreen Trees Can Signal Sites of Eruptions
Tree core chemistry can explain what happened before Mount Etna’s 2002 eruption and suggests that trees could play a role in rebuilding past eruptions.
Posted inResearch Spotlights
Understanding Tremors Through Tree Rings
Researchers look to carbon isotopes and cell-level wood anatomy to understand how seismic-induced changes in water availability affect tree growth.
Posted inScience Updates
Tree Rings Reveal a 700-Year Record of Flooding in Bangladesh
Trees tell of a wetter past along the Brahmaputra River and, combined with climate modeling, suggest heightened future flood risks in one of the world’s most densely populated areas.
Posted inResearch Spotlights
树木年轮显示了最新发现的极端太阳活动事件记录
对树木年轮物质的光谱分析表明，碳-14浓度在一年内急剧上升，这与发生在公元前5410年左右的极端太阳高能粒子事件相一致。
Posted inResearch Spotlights
Tree Rings Show Record of Newly Identified Extreme Solar Activity Event
Mass spectroscopy of tree ring material indicates a sharp, single-year rise in carbon-14 concentrations consistent with an extreme solar energetic particle event that occurred around 5410 BCE.