In this photo provided by Songlin Fei, Purdue University, taken May 16, 2017, an Eastern white pine tree. Eastern white pine trees in the U.S. have moved more than 80 miles west since the early 1980s, according to a new study. by Songlin Fei of Purdue University. A warmer, wetter climate is helping push dozens of Eastern U.S. trees to the north and, surprisingly, west, a new study finds. (Songlin Fei/Purdue Univesity via AP)
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