Tag: autumn

Posted on

The Beauty of Fall Colors

The Beauty of Fall Colors

Fall is my favorite time of year. It is fascinating to watch the wildlife preparing for winter while the biting and stinging insects are suppressed and the night sky is delightfully clear. Here in Michigan, the coming of fall is heralded by a constant flow of colors. We begin with brilliant red sumac followed by crimson poison ivy wrapping itself around the still-green oaks and maples. As fall progresses, the maples and other species gradually change their colors, then the leaves begin to fall, and frost starts showing up. The beauty of fall colors in Michigan is astounding.

From a scientific perspective, we know how this system works. The chemical that gives green color to plants in the summer is chlorophyll-A. Chlorophyll allows plants to absorb energy mainly in the red and blue parts of the spectrum but very little in the green. Green is the highest energy of sunlight reaching Earth’s surface, and the leaves reflect green, preventing them from being burned by the summer sunlight. As the Sun’s angle becomes less, the green wavelengths are refracted away from Earth’s surface, reducing the chloroplasts in plant cells. In short, that means the chlorophyll is gone, and the green color goes away. We see the beauty of fall colors in the true colors of the leaves. Since each plant has a different chemical makeup in its leaves, each has its own color.

The chemistry of chlorophyll is highly complex, but the bottom line is that in the fall, chlorophyll no longer gives leaves their green color. Why is the system designed like this? Why is sumac different from hard maples, which are different from sugar maples, which are different from oaks? It seems that one chemical formula would work for all plants, making such a complex system unnecessary.

As I sit here writing this and admiring the beauty of fall colors, it seems that in spite of my science background, I feel I am looking at a wonderful painting by an artist applying a palette of colors with an eye for beauty. “Survival of the fittest” does not explain beauty and color, especially when other alternatives are available. It is also essential to understand that seeing the beautiful color of fall is something our eyes are designed to do.

Most animals do not see color and those that do use color as a survival device. Human eyes are designed to perceive color, and we are designed to appreciate and enjoy beauty. Take time to look for the colors around you, and know that they speak of God’s handiwork to bring something good into our lives.

— John N. Clayton © 2024

Posted on

God’s Design of Fall

God’s Design of Fall

In the Northern Hemisphere, we have just entered the period we call autumn or fall. Summer has ended. Earth’s axis tilt and its path around the Sun cause the Sun to be directly overhead at the equator. We refer to this as the equinox, which is Latin for “equal nights.” Thus, at this time, we have approximately 12 hours of daylight and 12 hours of night. As a new season begins, we see God’s design of fall.

For those living in the northern hemisphere, this time brings amazing things to see among the plants and animals around us. Tree leaves turn from green to a cascade of colors. They don’t all turn at the same time because of their system design. Some measure the length of the day and start turning colors when the equinox occurs. Others depend on temperature to change colors. In addition, we see fruits and nuts come to full maturity at this time, providing food for animals and ensuring the future growth of new plants.

We see God’s design of fall as animals prepare for winter. With the temperature change, some animals migrate to warmer areas. This movement coincides with the abundance of fruits and nuts, allowing nutrition for the journey. Some animals, such as hummingbirds, leave well ahead of freezing temperatures. Other animals change their color in preparation for winter camouflage in the snow. Still others retreat into a place underground where the temperatures will not drop below freezing.

The question is, how do all these plants and animals know when to do that? It cannot be a conscious, planned adjustment by the animals to the local situation. Many of the changes happen even before the cold weather arrives. Certainly, plants don’t think about cold weather coming and their need to prepare for freezing conditions. Some of the changes seem to be designed to provide humans with a sensation of beauty. A sea of green becomes a splendor of color as the plants eliminate chlorophyll “A” (which gives them their green color) to reveal various colored chemicals in the leaves.

Fall is not just about beauty, but it also brings amazing and beneficial changes. Plants that survive the winter are able to free themselves of insects and bacteria that can damage them. Some animals prepare for winter by fattening up to go into hibernation. Bears give birth during this period. God’s design of fall is a functional system that speaks of God’s wisdom.

We can see God’s wisdom and design in a unique way at this time of year. Solomon wrote in Ecclesiastes 3:1, “To everything there is a season and a time to every purpose under heaven.” To those of us who listen, fall speaks of the purposes of God in His living things.

— John N. Clayton © 2021

Posted on

Colors of Fall and What they Mean

Colors of Fall and What they Mean

The beauty of autumn’s brilliant colors is an amazing testimony to the creative wisdom of God as well as an expression of His love of beauty. The colors of fall are caused by several pigments and the interaction of sunlight and sugar.

Most of us know that chlorophyll makes leaves green. When leaves receive reduced sunlight in the fall, they also have a reduced supply of nutrients and water, causing the chlorophyll to be removed. The chlorophyll masks two pigments that have different colors. Carotene is yellow, and several varieties of anthocyanins are red. Many leaves contain tannin, which is brown and is dominant in oak trees. Sunlight acting on trapped sugar also produces anthocyanins with various sparkling colors, which is why the color is so spectacular on a sunny autumn day in a maple forest.

As the days grow shorter, the reduced amount of sunlight causes a corky wall called the “abscission layer” to form between the twig and the leaf stalk. This wall will eventually break and cause the leaf to drop off in the breeze. The corky material seals off the vessels that supplied the leaf with nutrients and water and blocks any loss of sugars from the plant.

What is especially interesting is that the leaf colors are not all the same. Some vines produce spectacular colors. Poison ivy takes on a beautiful red due to a high concentration of anthocyanin. Aspen has a high concentration of carotene producing the vivid yellows which dominate the woods in the Rocky Mountains. In Michigan, we have maples, gum, aspen, and oak, giving us spectacular colors that vary from one location to another.

The colors of fall are a great testimony to the fact that God paid attention to aesthetics in the creation. If survival of the fittest were the only criteria for choosing the chemicals that allow plants to survive, it seems that there would be one best choice. Different chemicals provide a vivid, beautiful splash of color for humans to enjoy. Beauty is not part of the evolutionary model, but it speaks of God’s creativity, giving us a wonderful and beautiful world in which to live.

— John N. Clayton © 2020

Posted on

Winter Is Coming

Beautiful Fall but Winter Is ComingFall is a beautiful time of year. We all enjoy the changing colors of the trees, and there are changes in our lives that involve preparation for winter. Not all of us view these changes in a positive way. The fact is that whether we like it or not, change is coming. The sight of trees turning colors and the leaves falling to the ground reminds us that winter is coming.

Life is very similar to that. As we get older, signs are telling us that major change is coming in our lives. Our hair turns gray or falls out or both. There is pain in our movements that was not there before. The way we gain weight and our energy levels change, whether we like it or not. All of the medication in the world will not stop the physical changes coming in our lives. Mentally and emotionally, we must adjust to the fact that our faculties are not functioning as they did in the past, and we experience the loss of friends and family making us aware of our own mortality.

One of the things that belief in God does to us is that it allows us to approach the changes that come to our lives in the same way we do the colors of fall. We can scream and fight the fact that winter is coming, but it will still happen. We can buy cosmetics and vitamin pills, but the winter of life comes anyway. When I was an atheist, I had to look at life with all of its problems, pain, struggles, and the awful things that happen as the very best that I was ever going to have. Now, as a Christian, I can look at life with all of its beauty, wonder, and the fantastic things we all enjoy as the absolute worst I am ever going to have to endure.

How do you look at life? Is it the best you will ever have or the worst you will ever have to tolerate? Can you not see that this is the difference between the believer and the nonbeliever. It’s as different as night and day, black and white. If there were no other reason to believe in God but this one, it would be a compelling reason.

We can debate and fuss about things we do not understand. We can complain that we do not like the way God does things. But the fact is that all of those arguments have very little meaning when we are looking death in the face. The colors of change in the fall tell us winter is coming, and the colors of life tell us we will all soon stand before our Creator in judgment. Know why you believe what you believe, and intelligently trust in God to guide you to eternity.
— John N. Clayton © 2019

Posted on

Autumn Equinox and Season Design

Autumn Equinox and Season Design
We have just passed the autumn equinox and what we call “the first day of fall.” It will be late December before fall officially ends at the winter solstice. On the first day of fall here in Michigan, it was unseasonably hot, and people were griping about “where is the cool fall weather we are supposed to have?” Long before the first day of winter on December 20-21, we will have snow. Is there something wrong with the seasons, or is the trouble with our understanding?

“Equinox” suggests that the length of the day is equal to the length of the night. The Sun is overhead at the equator, and from now until December 20 it will be directly overhead at progressively greater southern latitudes until it reaches just past 23 degrees south latitude. Here in the north, the Sun’s elevation above the horizon will get progressively lower, meaning that less and less of the Sun’s energy will strike the Earth’s surface so the weather will get cooler.

The problem with this simple picture is that there is a lag in the seasons. During the summer months in the Northern Hemisphere the lakes and oceans warm from the sunshine. Water has a high specific heat, so that heat is stored and is released slowly. That means we stay warm longer than expected in the fall. In the Southern Hemisphere the picture is complicated by the fact that the Earth is closer to the Sun during their summertime, so the radiation is more intense. That might be a problem except that the Southern Hemisphere has more water than the Northern Hemisphere because oceans cover more of the southern Earth’s surface. With that greater storage and absorption capacity moderates the temperatures in the Southern Hemisphere.

The autumn equinox reminds us of the incredibly well-designed system of the Earth. It is easy to over-simplify the seasons and the equinoxes and solstices, but the system functions remarkably well. Without that careful design, the weather picture would be far more unstable than it is. Proverbs 8:22-31 speaks of wisdom’s involvement in all of the creation. We are just now beginning to understand how the system works and how our use of Earth’s resources affect the system.
–John N. Clayton © 2017