ST. LOUIS — A foul fish-smelling odor has descended on the St. Louis region, and local fish fries aren't to blame. Countless Bradford pear, or Callery pear, trees across the area have started to ...

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More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts warned Monday. In all, 38% of trees are at risk ...

More than a third of the world’s tree species are threatened with extinction, according to the first comprehensive assessment of trees by the world’s leading scientific authority on the status ...

And, he adds, “it’s getting worse and worse, every year.” Trees in the St. Louis region — like elsewhere — have been under siege from a combination of recent threats.