Brown birch trees in both Southcentral and Interior Alaska this summer aren’t signaling an early fall. Rather, they are subject to an infestation of small, leaf-munching larvae. Alaska is in the ...

Each fall, the trees in Pennsylvania exchange their green leaves for reds, yellows, oranges, and browns. A lot goes on behind the scenes of this beautiful natural process.

Fall's dazzling colors will soon transform woods and forests around the U.S., delighting spectators — if they can figure out when to see the fall foliage at the peak of their transformation.