Two blue-painted trees in Wooster now serve as conversation starters and connect residents with mental health resources.

Trees need a certain number of warm days in their growing seasons to grow properly; otherwise, the cell walls of new growth don't lignify properly, creating blue rings that appear when wood samples ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. In the frigid landscapes of northern Norway, an unusual phenomenon ...

Perhaps you've noticed some blue trees dotting the city's landscape as of late. Konstantin Dimopoulos, the New Zealand-born artist heading up the project titled "The Blue Trees," says he's trying to ...

Blue growth rings found in woody plant stems represent years when cells did not lignify properly because of summers too cold for growth When the going gets cold, even tough trees struggle with growing ...