Leaves change color because of the shorter days of fall, according to the U.S. Forest Service. As days grow shorter, and nights grow longer and cooler, biochemical processes in the leaf begin to ...

And leaves are how that happens. But to be even more specific, it's the pigments inside the leaves that do this, that capture the sunlight. KWONG: And by pigments, do you mean colors? HANSON: Sort of.

How much and how fast leaves transform varies by location on the globe. The best colors are produced when the weather is dry, sunny and cool. Places that are cloudy, damp or warm won’t see the same ...

However, when the supply of water to the leaves is cut off, photosynthesis slows and eventually stops. As a result, chlorophyll production halts, and the green color fades or decomposition begins.

However, when the supply of water to the leaves is cut off, photosynthesis slows and eventually stops. As a result, chlorophyll production halts, and the green color fades or decomposition begins.

Before you start raking up leaves, spend a little time enjoying the changing colors. Here's what to know about fall foliage in Delaware this year.

For the trees that managed to produce and maintain leaves through the spring, a dry summer forced many leaves to prematurely turn yellow and brown and, in some cases, to drop ahead of schedule.

Leaves change color because of the shorter days of fall, according to the U.S. Forest Service. As days grow shorter, and nights grow longer and cooler, biochemical processes in the leaf begin to ...