Why do leaves change colors in fall?

Ever wonder why leaves change colors in the fall? CNN meteorologist Pedram Javaheri explains why leaves turn red and orange when September rolls around.

[jsiszero]

I blame Obama for seasonal climate change

[ernestoj]

Fall is such a beautiful season. I'm ready for the smell of fresh snow, and maple syrup pork chops.

[JOHNNYFUTS]

why do birds suddenly appear every time you are near?

[paigeeubanks]

They are beautiful. But that's something you learn in Elementry

[wiseass]

Ya well this is taught in freshman highschool. Also burning wood is like bottled sunlight also.

[theplaneoverther]

To that they are more beautiful than humans