Although the chemistry of autumn colours is well understood, there is an ongoing debate among scientists about why trees evolved their vivid autumn colours in the first place.

Behind every autumn leaf lies a chemical shift-chlorophyll fading, carotenoids glowing, anthocyanins rising-that turns survival into spectacle. The post The Science of Fall Foliage: Why Leaves Change ...

Children uncover the wonders of autumn as they explore leaves, seeds, and nuts, learning about nature through activities, creative play, and curious observation outdoors.

DENVER (KDVR) — Peak season for fall leaves is arriving in some areas across Colorado, but snow is also coming along with the yellow aspens and changing colors. The Pinpoint Weather team expected fall ...

The fall season officially begins on Monday, Sept. 22, 2025, with the autumnal equinox. An equinox occurs when the Earth's axis is tilted neither toward nor away from the sun, resulting in nearly ...

Portland, Maine — Leaf-peeping season has arrived in the Northeast and beyond, but weeks of drought have dulled this year's autumn colors and sent leaves fluttering to the ground earlier than usual.

Climatologists say this season's abnormally dry and warm weather will make the usually vibrant fall leaves harder to come by in North Carolina. Climatologists say this season's abnormally dry and warm ...