So how do they do it? Trees convert carbon dioxide into oxygen through a process called photosynthesis. Photosythesis means “to put together with light.” The light is sunlight, shining on the tree, and the pieces being put together are carbon dioxide and water. When a tree has these three ingredients it uses the energy from the sunlight to combine the carbon from the carbon dioxide with the water to make a carbohydrate, or more simply, a sugar. The sugar is food for the tree, just as people eat sugar and carbohydrates. When the tree makes the carbohydrate, there is extra oxygen from the water, which luckily for us gets released into the air, giving us the oxygen we breathe.
By: Lina D.
Without stopping to take a look around, we can sometimes miss the transition of our surroundings from summer to autumn. But just in case you’ve been watching the trees change colors, here’s a list of photos that compare various locations before and after they change into their autumn colors.
Besides the nip in the air, the scarves, and the delicious autumn fruits and vegetables, the changing leaves are probably the greatest sign of autumn that there is. Chlorophyll, which is the green pigment in leaves that produces energy for trees, gradually breaks down in the fall, revealing the many other colors that also exist in leaves. That’s where we get the rich browns, oranges, yellows and reds that we associate with the season.
Mankind’s relationship with nature is a difficult one – we must use it, live in harmony with it, protect it and protect ourselves from it. These visually striking images that we collected of tree roots colliding with concrete are beautiful symbolic representations of this complicated relationship.
It’s hard to say what it is exactly about tree roots that capture our imagination, but they have done so for thousands of years. They snake through many world cultures’ folk-tales and legends and take root in our symbolic vocabulary. The slow but sure force with which they crush and overcome concrete (and sometimes even steel) inspires visions of a natural reclamation of the civilized world, and their serpentine forms inspire visions of rivers and lightning.
Whatever these photos make you think of, we hope you love them as much as we do!
Forests are divided into three different layers: the forest floor, the understory and the canopy. The forest floor is comprised of soil, dead plants and animals and small plants such as grasses and wildflowers. The understory contains small trees or bushes and is also called the shrub layer. The canopy is made up of the leaves and branches of the trees that dominate the forest.
Pankaj, my friend of 20 years, asked me, “Does God exist?” I replied, “Yes, he does.” Pankaj continues, “I don’t believe it. I am an atheist. If God really exists, prove it to me.”
So I continue “Well, it’s very easy to prove it . . .”
. . . And I embark upon a dedicated effort, “God is someone or something that we cannot physically locate. Perhaps that is the reason why some of us tend to resign to the notion that He does not exist. As human beings we are naturally inclined to explore. And hence we must try to find God wherever He exists. But does He give us a chance to do so? Where do we start looking? Should we try to find Him in the heavens above? Should we look for Him in the skies, in the sun, in the moon, our own planet or should it be in inanimate objects such as trees, idols, or in living beings such as animals or gurus or even ourselves?
Pankaj intervenes, “Hey man, don’t beat around the bush. Come to the point. Prove it!”