News

Donald Falk, a faculty member in the Laboratory of Tree-Ring Research and the School of Natural Resources and the Environment, has been named a 2026 Fellow of the Ecological Society of America in recognition of his work on fire history, fire ecology, and ecological resilience.

LTRR dendrochronologist Margaret Evans finds that rising temperatures — not rainfall alone — are driving a new kind of drought in Arizona forests, with even high-elevation trees once buffered by cold now suffering in warm years.

As part of the University's Bear Down 100 celebration, this feature traces the Laboratory of Tree-Ring Research — founded in 1937 by A.E. Douglass and the oldest dendrochronology lab in the world — and its tree-ring collections spanning more than 12,000 years.

The LTRR has been awarded a grant by the National Endowment for the Humanities (NEH) for Experiential training of the next generation of museum professionals through American Southwest cultural heritage collections.

The LTRR has been awarded a grant by the National Endowment for the Humanities (NEH) for Experiential training of the next generation of museum professionals through American Southwest cultural heritage collections.

Irina Panyushkina of the LTRR has led a team elucidating more details of the huge solar eruption that hit the Earth around 664 BCE.

New paper by LTRR lead author Bryan Black

The AGU honors Kevin Anchukaitis with the 2023 Willi Dansgaard Award.

The LTRR's part of the School of Earth and Environmental Sciences EarthWeek is Tree-Ring Day: lightning talks, the regular Tree-Ring Talk, catered meals, and other activities.

LTRR postdoc Ellie Broadman is co-author of an article reviewing the trends in global temperature over the last few thousand years.