Architect James Richärd, who remembers grade-school trips to the University of Arizona's giant tree-ring specimens, has designed a $12 million "treehouse" to display them. The new building, mostly ...
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 ...
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