Autumn Leaf Colors: The Science Behind the Change
The leaves in the northern hemisphere have changed colors, and the Lower Mainland is experiencing its autumn blaze of glory.
Santokh Singh explains the science behind this phenomenon and shares his favorite leaf-viewing spots.
Leaf Senescence: The Biochemical Process
Leaf senescence refers to the biochemical and molecular changes that occur in early or mid-September, causing the leaves to change color from green to orange, yellow, and red.
It's actually the plant recycling its nutrients.
The Role of Chlorophyll
Leaves appear green during spring and summer due to the presence of chlorophyll, which is used to convert sunlight into energy for the plant through photosynthesis.
As autumn approaches, the plant breaks down larger molecules, including chlorophyll and proteins in the leaves.
Author's summary: Science behind autumn leaf colors explained.
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