Remember last year when it was 50 degrees?The warming and cooling of the earth may be a game between plants and animals


Remember that awful summer last year?A number of cities in China have exceeded 40 degrees Celsius, including Canada, the United States and many north American countries more than 55 degrees for many days, death Valley surface temperature is close to 90 degrees, what is the earth, why the sudden fever?Scientists have been working for years to understand the root causes of changes in the earth’s atmosphere, which determines its temperature and causes it to warm and cool.Now scientists believe that animals that exhale carbon dioxide are also responsible for the planet’s high temperatures, while plants that absorb carbon dioxide through photosynthesis are responsible for cooling the planet.Whether the planet heats up or cools down also reflects which side is gaining the upper hand in a conflict between animals and plants.In the past, the prevailing scientific view was that the main cause of atmospheric misproportions was volcanic eruptions, such as those in Tonga, which inevitably affected local temperatures and climate.Plants and animals were thought to live in peace because they ingest each other’s waste.Professor Gregg, an American scientist, believes that animals and plants are not only in a peaceful relationship, they are contradictory and unbalanced.The imbalance can last as little as a few hundred days, or millions to tens of millions of years.This imbalance has driven changes in the composition of the earth’s atmosphere, and temperatures have risen or fallen with it, ever since insects first appeared on the planet.This tug of war players include all kinds of dinosaurs, trees, termites, lignin, lignin is the main raw material of plant cell wall, plant is also because of the cell wall will proudly stand, born into the sun, grow into 70 or 80 meters high towering trees.Changes in the composition of the atmosphere were not noticed by scientists until around 1950, when George, a scientist in California, measured the level of carbon dioxide in the air near the Hawaiian Islands and found that it varied by about 2% a year.At first, he thought the change was caused by the changing seasons, in spring and summer, when plants use photosynthesis to suck carbon dioxide out of the air and exhale oxygen.In autumn and winter, when photosynthesis almost disappears, carbon dioxide levels begin to rise again.The Northern hemisphere is covered in large areas of vegetation, so the carbon dioxide absorbed by plant photosynthesis in the summer is replenished in the winter, and the cycle repeats itself.But carbon dioxide levels are rising every year because of the release of the C stored in them by burning traditional energy sources such as coal.Gregg wondered if the tension between photosynthesizing plants and breathing creatures might be affecting the earth’s temperature to a greater extent.489 million years ago, when the sun’s radiation was even lower than it is today, but the concentration of carbon dioxide was 21 times higher, life exploded on Earth.The soil was full of carbon dioxide breathers, and digging up the soil reveals arthropod fossils, but around 350 million years ago, carbon dioxide levels plummeted and the earth entered a long ice age.Gregg believes that plants had the upper hand in the battle for temperature control, and the fossil evidence suggests that there was indeed an abundance of lignin-rich vascular plants, which gave rise to the towering trees that dominated the land surface in their own way.They began to photosynthetic frantically, the carbon dioxide in the air has been absorbed by the trees, oxygen concentration has skyrocketed, in addition, the trees also absorbed a lot of water and minerals, their roots continue to extend downward, carbon dioxide rapidly reduced.Creatures were helpless against the hard trees, they couldn’t consume them, carbon dioxide levels were low, and Antarctica was frozen.And then due to geological processes, a lot of carbon dioxide into organic carbon buried underground, into today’s coal, no longer into the atmosphere, resulting in less and less carbon dioxide.Then came the brave termites and dinosaurs that challenged the vascular plants, and in the soil layers of that time, there are fossils of termite nests and dinosaurs in abundance, animals that won control of temperature and maintained it for nearly 200 million years.They gobbled up plants, exhaled carbon dioxide, and the level of carbon dioxide in the earth’s atmosphere increased rapidly, to 3.5 times the level of carbon dioxide in the atmosphere today, and the earth once again became hot and humid.The pictures are from the Internet and must be deleted.

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