Tree-ring samples taken by Paulo Quadri, who earned a Ph.D. in environmental studies from UC Santa Cruz, were included in the study. (Photo by Luz A. de Wit) The top-line findings of a massive ...
James Johnston has been studying trees in the Blue Mountains that are older than America, and he’s disturbed by how many trees, after surviving for a few centuries or longer, died during a single ...
Add Yahoo as a preferred source to see more of our stories on Google. PORTLAND, Ore. (KOIN) — Older trees in an Eastern Oregon forest are perishing “at an alarming rate,” according to researchers. A ...
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