Here’s what to know about why leaves change color in the fall—and how the process is being impacted by climate change.

Scientists have long questioned whether the vibrant colors of fall foliage serve an evolutionary purpose. One theory suggests red pigments protect leaves from sun damage, allowing trees to absorb more ...

The window for viewing fall colors is potentially shrinking and the vibrancy of the leaves may be dulling over time. North Carolina's diverse elevation gives it one of the longest fall color seasons ...