Someone has been paying attention.

My youngest son and I were watching TV the other day (I think it was HGTV, my favorite!). They were showing beautiful scenes of green forests and fields and the narrator made a kind of, um, weird philosophical statement about the elements of the earth coming together and blending to make the the colors of the earth, the green, the blue ... etc. My son said to the TV "It the cholorophyll that makes them green!"