Chapter 502： : Bezos’s request, the remains of the departure station [Anti-theft] [FiveK... (2/2)
In the shallow water near the coast, snails and clams died one after another, but they were quickly replaced by similar molluscs, which played the same ecological role-sifting sand and eating seaweed. The changes in other species are even more dramatic. For example, after experiencing a mass extinction, triggerfish and puffer fish took nearly 20 million years to evolve enough new species to restore their lost diversity.
Near the equator, coral polyps similar to the corals that survive today disappeared. Disc-shaped creatures called ”large foraminifera” filled their niche and became the builders of coral reefs until the ocean several million years later. Finally cooled down again.
Precipitation causes global climate ice and fire
During the PETM period, rising temperatures led to changes in the global rainwater cycle, which provided necessary help for the spread of the subtropical canopy, resulting in polar swamp forests.
Most of the weather patterns on the earth provided by Red Star News: The way air and water circulate in the ocean and sky are affected by the temperature difference between the hot equator and the cold poles.
Before the Paleocene-Eocene, the evaporated water near the middle of the earth formed rain clouds, and there was precipitation in tropical regions and extreme latitudes. However, the warming of the climate has caused changes in the airflow, causing more equatorial moisture to reach the remote Antarctic and Arctic regions before returning to the earth. This is one of the reasons why hickory and cypress trees grew in the ancient Arctic. These plants provided places for lemurs and primates to climb.
Research provided by Red Star News shows that by the end of this century, the soil in the southwestern United States will be 10% to 20% more dry than it is now, and the risk of drought will increase by at least 20%
But the rain that falls has to go somewhere. In some parts of the world, the surge of wet weather means that more water will evaporate in arid areas. Today’s climate change may have a similar effect, and wetter winters have increased the frequency of destructive floods in northwestern Europe. At the same time, the southwestern United States is getting dry year by year. Studies have shown that by the end of this century, the soil in the southwestern United States will be 10% to 20% more dry than it is now, and the risk of drought will increase by at least 20%.
Hundreds of waters around the world may fall back to the PETM era
At the beginning of the PETM period, the ocean temperature was already very high. For example, before the warming, the equatorial temperature of the ancient Atlantic Ocean was 36.6 degrees, which is about 8.8 degrees higher than the temperature of the Atlantic Ocean today. The extremely hot sea water makes the deep sea lose its cooling source, and the oxygen level in the water drops. At the same time, global warming has caused a large amount of carbon dioxide to be absorbed by the ocean, which has caused the acidity of the sea to rise sharply, and few life can survive in such a suffocating place.
Provided by Red Star News Global warming has caused a large amount of carbon dioxide to be absorbed by the ocean, causing the acidity of the sea to rise sharply
However, in the fossil deposits of the Paleocene and Tertiary, paleontologists discovered that in the seawater of nearly 38 degrees at the equator, the tiny organisms that caused the ”red tide” began to proliferate in large numbers.
Provided by Red Star News that the oceanographic survey ship conducts research and investigation in the Baltic Sea
Right now, waters in various regions of the world are responding to a similar situation: hundreds of so-called ”dead zones” have been recorded around the world, including multiple locations such as the Gulf of Mexico and the Baltic Sea, and are facing the risk of regressing to the ”PETM era”.
Experts say that the current rate of carbon emissions is unprecedented
In fact, scientists often use the PETM period as a benchmark for comparing modern climate changes. However, studies have shown that because the current global warming rate far exceeds any climate event that occurred after the extinction of the dinosaurs, our rate of parity with this benchmark is faster than previously expected.
Provided by Red Star News Global warming is increasing, Antarctic ice melting is increasing
A study released in 2019 found that humans are now emitting carbon dioxide into the atmosphere at a rate 9 to 10 times that of the PETM period 56 million years ago. The results of the study show that if carbon emissions continue to rise, the total amount of carbon dioxide emitted into the atmosphere from the beginning of the use of fossil fuels to 2159 may be equivalent to the total amount of carbon dioxide released during the PETM period.
Gabriel Bowen, a geophysicist at the University of Utah, said, “If everything is business as usual, even with PETM as a background reference, today’s carbon emissions will be at an unprecedented rate. Therefore, in terms of understanding how the earth responds to this change, we don’t have Many geological examples can be used for reference.”
Editor's note: At present, the mainstream method of diagnosing mental problems in the medical field is to use a checklist system. Clinicians will compare the list of symptoms with the experience reported by the patient to determine what kind of disease it is. However, the symptoms of depression and anxiety have many similarities, making it difficult for the patient or a professional doctor to distinguish the two diseases. However, considering the similarities in the treatment of these two diseases, it is impossible to distinguish between the two and the impact on the treatment effect is not very large. Even so, scientists are currently actively exploring in this field, trying to subdivide the classification of diseases in order to provide patients with tailor-made treatment plans. This article is translated from Medium, the author Erman Misirlisoy, PhD, the original title is ”, orIsItAnxiety?”, I hope to inspire you. ‘
How did anxiety and depression begin, and how did they end?
In 2017, the World Health Organization estimated that 4.4% of the world's people (over 300 million people) suffer from depression, and 3.6% (over 250 million people) suffer from anxiety. But there is a fact that makes this situation more complicated: many people with depression symptoms also have anxiety symptoms, and many people with anxiety symptoms also have depression symptoms. This makes it difficult to reliably diagnose and distinguish between these two diseases.
The current mainstream method of diagnosing mental problems is to use a checklist system, such as the latest version of the ”Diagnostic and Statistical Manual of Mental Disorders” (DSM-5). The clinician compares the list of symptoms with the experience reported by the patient. If a person continues to have symptoms such as depression and feelings of worthlessness, he may be diagnosed with major depression. If a person usually experiences constant anxiety and irritability, they may be cut off as generalized anxiety disorder. But looking at these standards for each disease, it is not difficult to find that there are many commonalities. For example, depression and anxiety can hinder life activities, hinder sleep, and consume one's own energy.
The main difference between these two diseases is the basic state of a person’s emotions: extreme sadness can be defined as depression, and extreme fear or worry can be defined as anxiety. But we can also easily see the connection between the two. When people feel sad about their lives and past experiences, they will also feel anxious about the direction of their future lives. When they feel anxious about the future, they also feel sad about their current life.
Because the symptoms of anxiety and depression overlap considerably, and because patients can show the same symptoms for different reasons, clinicians should consider the overall situation when making a diagnosis. Hack said: ”The DSM diagnosis of depression or anxiety (or both) must take into account the entire clinical situation, not any specific symptoms or signs.” Most people diagnosed with anxiety or depression There also seem to be symptoms of other diseases. As Rosser said: ”Comorbidity is the norm. UU Reading ”
According to foreign media reports from Kuai Technology, at the Tesla 2021 shareholders meeting in Austin, Texas, Musk told reporters about his new goal. He hopes to pass SpaceX by 2050 and be on Mars. Build a city with 1 million inhabitants and build a Tesla factory there.
Musk said that Tesla’s first alien factory may wait for many years. Although I don’t know what it will develop in the next 40 years, I hope to see it on Mars before he passes away. In addition, Musk also said that as Tesla's factories in Austin and Berlin are built and run together with factories in Fremont, California and Shanghai, new factories may be built.
In the report of the 19th National Congress of the Communist Party of China, it was proposed that more secondary vocational students should receive better and higher-level vocational education. With the release of the ”National Vocational Education Reform Implementation Plan” at the beginning of 2019, vocational education and general education have the same important status, and the policy has also been clarified.
As of September 2020, Chengdu has 87 secondary vocational schools with 184,000 students. Among them, the ”double certificate” rate of secondary vocational graduates reached 83.8%, and the employment rate remained above 98%. The export and success of secondary vocational students have received attention from the central to the local level.
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