Using tree ring records to decode Earth's climate history

Ed Cook is one of the founding directors of the Lamont-Doherty Earth Observatory Tree-Ring Laboratory. During his 43 years at Lamont, Cook has used tree rings to decode past climate patterns and advance understanding of drought—research ...

Searching for clues on extreme climate change

The remains of a buried pine forest at the foot of Mont Saint Genis in Southern France yield insightful information on a drastic climate change event. The pine tree stand initiated around 12,900 years ago during the relatively ...

Trees reveal the evolution of environmental pollution

In an article published in the journal Environmental Pollution, Brazilian researchers have showed that tree species Tipuana tipu have been successfully employed as a marker of atmospheric pollution by heavy metal and other ...

In eastern US, adult trees adapt and acclimate to local climate

Trees growing in temperate forests in the eastern US show strong adaptation or acclimation to local climate. So reports a new study that analyzed more than 23,000 tree cores to investigate how adult trees respond to changes ...

Dating the ancient Minoan eruption of Thera using tree rings

New analyses that use tree rings could settle the long-standing debate about when the volcano Thera erupted by resolving discrepancies between archeological and radiocarbon methods of dating the eruption, according to new ...

Wood density of European trees decreasing continuously since 1870

Trees are growing more rapidly due to climate change. This may sound like good news—after all, this means that trees are storing more carbon dioxide from the atmosphere in their wood, and hence modulating a key ingredient ...

Laia Andreu-Hayles explores tropical forests in a warming world

Laia Andreu-Hayles is a tree-ring scientist and Lamont Associate Research Professor at Lamont-Doherty Earth Observatory who uses the data contained in tree rings to reconstruct past climate conditions and study the interactions ...

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