Extreme high temperature weather is happening in many places around the world at the same time. The heat wave sweeping across North America in 2021 is still fresh in our minds. Extreme weather will still come "as promised" in 2022. This summer in the northern hemisphere is excessively hot, with India, the United States, Europe, China, and even The Arctic region covered by glaciers has experienced record-breaking extreme high temperatures.
Continuous high temperature weather means less rain and drought. In the Yangtze River basin in my country, due to drought and less rain, the water level has dropped. Both Dongting Lake and Poyang Lake have entered the dry season ahead of schedule. The riverbed has turned into an "oasis" and is covered with a large amount of grass growth. It can reach 20-30cm tall.
Due to drought and low rainfall, many rivers are facing drying up. For example, the picture below shows an ancient horse bridge at Baitings Reservoir in the UK. The ancient bridge was exposed due to the falling water level. Not only that, many rivers in Europe have exposed ruins that people have never seen before, and there are also many warning "hunger stones" with "You will cry when you see me" engraved on them!
The extreme weather occurring in many places in the northern hemisphere shows that the earth's climate is changing at an accelerating pace. Of course, we cannot predict that extreme weather on the earth will continue to occur in the future, but at least there will be such a trend.
The most direct impact of climate change is high temperature and drought. Especially under the influence of greenhouse silencing, the global average temperature continues to rise, which will also intensify the extreme celestial bodies caused by climate change. After extreme high temperatures, storms, floods, and hunger will follow. If we do not protect the earth's ecological environment and climate environment, everything will eventually come to us again!
The continuous occurrence of extreme weather has forced many people to think about whether the critical point of the earth's climate is coming?
The statement of climate tipping point is not a random fabrication. In fact, this concept was mentioned by the United Nations Intergovernmental Panel on Climate Change (IPCC) more than 20 years ago.
Will Steffen, a climatologist from Australia and a member of the United Nations Climate Council, once proposed: "Nine of the 15 known climate tipping points have been activated, climate change has become irreversible, and human civilization has collapsed. will be the most likely result: ”
This means that 9 of the 15 climate critical points identified by climate scientists have been exceeded. These are key factors that can affect the balance of the earth's ecosystem.
The emission of greenhouse gases intensifies the greenhouse effect , causing the earth’s average temperature to continue to rise. This is a commonplace problem, but most people have not personally experienced the terrible consequences of climate change. In the past two years, this The terrible consequences are happening now and may not stop in the future.
Extreme high temperatures, droughts, severe colds, storms, heavy rains, etc. are the kind that are difficult for earthly creatures to resist! And the earth's climate is an overall system, like a domino. If the balance is broken, it may eventually lead to the earth being no longer suitable for the survival and reproduction of humans and even most living things.
For example, the melting of glacial permafrost is the most direct impact of the greenhouse effect as the global average temperature rises. In recent years, the remains of many prehistoric creatures have been continuously discovered. This is naturally a good thing for paleontologists, but since Thinking from the perspective of changes in the earth's climate and environment, the continued discovery of icy remains of prehistoric creatures is evidence of the rise in global average temperatures.
In some areas on the earth, such as the Siberian region of Russia and the Alaska region of the United States, due to their geographical location, the temperature is low all year round and there is a permanent permafrost layer . However, as the temperature rises, These permafrost layers are beginning to melt.The melting permafrost not only exposes the remains of some prehistoric creatures, but also some frozen bacteria and viruses are likely to return to the human world. Some people despise these microorganisms, but the outbreak of the new coronavirus has made us aware of the horror of these viruses.
The rapid development of mankind should not be premised on destroying the earth's ecosystem and climate environment. After all, these are the basic conditions that support the long-term development of human civilization. The emergence of extreme weather is like the cry of the earth, and it is also a warning, which means that the negative impacts of changes in the earth's climate and environment are emerging.
Of course, the direct cause of extreme high temperatures in the northern hemisphere is not the greenhouse effect, but the influence of the subtropical high. In southern my country, it is mainly controlled by the Western Pacific subtropical high , while in Europe it is mainly controlled by the North Atlantic high. As the next The impact of the downdraft subtropical high is relatively significant, and the main impact is high temperature and less rain.
The emergence of extreme high temperatures will become increasingly crazier as the greenhouse effect intensifies. According to the "2021 State of the World Climate Report", the World Meteorological Organization announced that the world's average temperature is 1.11°C higher than before the industrial revolution , and 1.5℃ is a key threshold. According to the "Paris Agreement", countries should strive to control the global average temperature rise to within 2℃ higher than before the industrial revolution, and strive to limit it to 1.5℃ higher than before the industrial revolution.
Facing the constant occurrence of extreme weather, we can only say that the situation is relatively serious. However, many netizens say that "this year will be the coldest year in the next ten years" is still too arbitrary. The prediction of climate environment is more complicated than we imagined. many.
But this trend has to make us pay attention to the fact that the earth's climate environment is changing in a bad direction. There is no doubt about it!
text/scientific black hole, picture source network intrusion and deletion,
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