A new tree-ring reconstruction targets a major feature of the Earth's atmospheric circulation.

Charlotte Pearson of the LTRR is lead author on a paper revising the radiocarbon dating of the Thera eruption.

The University of Arizona has conferred a Distinguished Scholar Award on Tree-Ring Lab faculty member Valerie Trouet.

A short documentary film is the first of several describing the work of LTRR researchers in Guatemala.

Valerie Trouet and Matt Meko from the LTRR, with Flurin Babst, reconstruct the jet stream.

Come to the University of Arizona for intensive summer tree-ring courses.

LTRR researcher Charlotte Pearson explores the frontiers of radiocarbon dating.

Kevin Anchukaitis of the LTRR talks on climate science and politics

Tree-Ring Day is a chance for people at the Tree-Ring Lab to show their work to each other and to a wider audience.