Autumn Colors Stamps 2024 Forever Stamps 100 pcs

Description

20 stamps/page * 5 pages. You got 100 stamps in total.

Background:

In many parts of the United States, autumn rivals spring as the most resplendent time of year, thanks to the rich palette of reds, yellows, and oranges that bursts onto the landscape every fall. The Postal Service celebrates this radiant annual display with its Autumn Colors stamps.

As days shorten and summer’s warmth begins to fade, the trees around us prepare for the biochemical changes that will soon transform their bright green foliage into the golden ochres, flaming vermilions, and burnt oranges so characteristic of autumn.

During spring and summer, leaves appear green due to the continuous creation of chlorophyll, a result of photosynthesis. As the light diminishes and nights become crisper, photosynthesis begins to slow and finally stops altogether. Leaves lose their green color and reveal carotenoids, yellow and orange pigments that were present all year but masked by the abundant chlorophyll. Sunny, warm days and cool nights also trigger the production of anthocyanins, the vibrant red and purple pigments observed in trees such as the black gum, red maple and sumac.