It's that time of the year Autumn, especially here in New England, treats us to one of nature's most awesome displays of color. Most of us only have to look out the nearest window to see the beautiful red, purple, orange and yellow of fall leaves. But science explains it. In the spring and summer, leaves are like little factories that produce food essential to a tree's growth. The food-making process takes place in cells containing chlorophyll, which is what gives leaves their green color.
Chlorophyll works like magic.
About this time of year, however, the chlorophyll begins to break down. When chlorophyll breaks down, green fades and the red and yellow pigments take over. Other chemical changes take place, forming additional colors. The effects mix, creating a broad palette of color. Each kind of tree takes on its own look.