<p>by Ray Allen<\/p><a href="\/media\/wpuploads\/sites\/3\/2008\/10\/031008-14fallforest.jpg"><img class="size-medium wp-image-304 alignleft" title="031008-14fallforest" src="\/media\/wpuploads\/sites\/3\/2008\/10\/031008-14fallforest.jpg?w=300" alt="" width="300" height="199" \/><\/a>Wrong. It has nothing to do with the temperature...it's all the shortening day lengths in fall.\u00a0 After living in Vermont for years, I had to learn all about it, since Vermont claims to have the most beautiful fall foliage in the world.\u00a0 There is only one place in China with the same collection of tree species (heavy on sugar maples) that rivals Vermont's color. At least that's what Vermonters say.\u00a0 This photo is in Colorado, and while the species are different, the fall glory is much the same.\u00a0\r\n\r\nI was amazed to learn that the bright pigment of the fall leaves (reds, yellows, etc.) is there throughout a leaf's life, but until fall, all the various colors are covered with green.\u00a0 That's because <!--more-->the tree is producing chlorophyll masking the true colors.\u00a0 As soon as the days get shorter and shorter in fall, the chlorophyll production shuts down, and the true color of each leaf in the forest is revealed.\u00a0\r\n\r\nIf you live in a big foliage color area like Vermont, you love the leaves and crisp fall days.\u00a0 There may be nothing more beautiful in nature than a stately maple tree in full color, backlit by bright afternoon sun.\u00a0 But\u00a0 there is always a dark side. Because as the fall colors glow, you know that in just a few weeks (around the end of October)\u00a0you're going to be\u00a0suddenly looking at bare trees and dreary winter skies.\u00a0 From the most magnificent scenery and weather of the year, you are suddenly plunged into the most depressing period of all.\u00a0 Almost everyone thinks January, while really frigid in Vermont, is usually a spectacle of snowfalls, which bring their own beauty.\u00a0 But November is all bad...cold rain, no sun, and general gloom--the price paid for nature's big fall show.\u00a0 One has to simply trudge through it, until the brightness of the holidays lifts all spirits.