New York Times

Toxic Moss in Portland, Ore., Shakes City’s Green Ideals
New York Times
PORTLAND, Ore. — The 346 clumps of moss that science researchers from the United States Forest Service scraped from tree trunks and branches across this city looked as ordinary as moss gets — ancient, simple and common to the point of invisibility in
Proud of its progressive image, Portland shocked by toxic mossThe Seattle Times

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