Tom Swetnam, the director of the Arizona tree-ring lab, grew up with wildfire. His father was a forest ranger in northern New Mexico, and after Swetnam graduated from college in the late 1970s, he ...

The UA has plenty of special features to offer, but one of its more overlooked aspects is its abundant plant life—specifically, that of the Laboratory of Tree-ring Research. UA’s tree-ring lab right ...

Tree trunks are more than just wood—they’re living records of everything a tree’s been through. From growth spurts to natural disasters, tree rings and dark lines inside trunks reveal secrets that are ...

Research conducted by UA researchers over the last two years has doubled the previous knowledge researchers had about climate variability in the Upper Colorado River Basin. A recent project conducted ...