Tree Thursday -- Watch Why Do Autumn Leaves Change Color? - Instant Egghead

Lots of misconceptions on why leaves change colors but here's the real reason ---



Video:

Scientific American editor Mark Fischetti explains how the leaves of deciduous trees perform their annual chameleon act, changing from various shades of green to hues of bronze, orange and brilliant red.

http://link.brightcove.com/services/player/bcpid1202686955001?bckey=AQ~~,AAAAAFNl7zk~,OmXvgxJOvrEZGUO9zkRu0HqtcBY54xr3&bclid=0&bctid=2717700431001