Spring and tree pollens peak at different times as the year progresses. But they are both spreading northward across the U.S. as May begins. Tree pollen is about to get worse in cities like New York, ...

WASHINGTON — You may be loving the warm air and sunshine in the D.C. area. So are the trees. The latest allergy report shows tree pollen count is currently high for the D.C. area. Cue the allergy ...

Can trees explode in frigid weather? As Minnesota is home to thousands of firs and oaks, the concept of an exploding tree is troubling. What does it mean? A viral social media post shared thousands of ...