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A comment on American Trees Are Moving West. Parent comment

Re:American Trees Are Moving West by piotrkaminski on Sunday May 21, 2017 @02:30PM (#14388455)
Actually, no, it doesn't. The subtitle (!) is:

> Climate change only explains at least 20 percent of the movement.

So what explains the other 80%?

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Re:American Trees Are Moving West by djtriptych on Sunday May 21, 2017 @02:37PM (#14388494)
"at least 20%"... so at most 100%?
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Re:American Trees Are Moving West by _delirium on Sunday May 21, 2017 @02:59PM (#14388618)
Pretty much, yeah. "Fei and his colleagues argue that at least 20 percent of the change in population area is driven by changes in precipitation, which are heavily influenced by human-caused climate change". Could be more than 20%, but that's what they have solid evidence for so far.
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