El Niño is not a new weather phenomenon, according to a recent NASA study that looks 750 years into the past using tree-ring records. Utilizing special computer techniques, a NASA scientist has linked ...

A new UA study uses tree-ring data to reconstruct Colorado River flows over the past 500 years. The study could have a significant impact on water use in the West and further emphasizes the need for ...

A new study leveraging 20,000 tree-ring records and nearly 150 scientists' contributions from across the globe shows that, while droughts appear to have had a modest impact on tropical tree growth in ...

The broiling summer of 2023 was the hottest in the Northern Hemisphere in more than 2,000 years, a new study found. When the temperatures spiked last year, numerous weather agencies said it was the ...

There’s no precedent in at least five centuries for how hot and dry the West has been in the last two decades, new research asserts using analysis of tree rings. The study, published in late January, ...

The current Western megadrought is unlike any other dry period the region has experienced over the past 500 years. That’s according to a new study in which scientists looked at tree rings to track ...

TUCSON, Ariz. (KGUN) — What do trees and fish have in common? It’s an important question the University of Arizona is answering. The school’s Laboratory of Tree-Ring Research (LTRR) is the world’s ...

Explosive tropical volcanic eruptions can set off a chain reaction in the atmosphere that weakens the Asian summer monsoon ...