PENNSYLVANIA, USA — Ever wonder what happens to oxygen levels when leaves fall off the trees? Joe lets us know how we are still able to breathe. Find out the answer in this edition of Wham Cam.

Autumn comes with a rare charm. It slows life down just enough for us to notice. The air feels softer, and there's something comforting about hearing leaves crunch under your feet. It's the season of ...

Autumn brings renewed vigor to the garden. Trees ignite in fiery hues. Asters and sunflowers erupt with autumn blooms. Even our vegetable gardens regain productivity. The crisp nights and cool days of ...

This is the time of year when Nicole Hughes gets constantly distracted by the fall foliage as she drives around North Carolina. "I'm always looking," says Hughes, a biologist at High Point University.

The fall colors of large woodland trees seemed a bit more muted and more sporadic compared with previous years, likely due to the drought. For example, in some woodlands, shagbark hickory leaves ...