Traditional Culture Encyclopedia - Weather forecast - 202 1 unexpected weather
202 1 unexpected weather
Arctic Climate Change The Arctic ice sheet has gradually decreased to 3.74 million square kilometers, which is the second lowest coverage area in history. In the future, there may be no ice in the Arctic in summer. Judging from the development of global warming today, the temperature fluctuates so much that some places have not even received the news of summer! The concentration of carbon dioxide in the atmosphere is as high as 17%. Judging from this data, the earth is absorbing heat crazily.
Is the earth going to "cool down"? In fact, this understanding may be different for everyone. The reason why the earth is "crazy" to absorb heat is mainly because the earth has too much "heat energy". With the continuous emission of greenhouse gases, the earth itself is in a "balance point". The heat will exceed the normal level. Scientists call it "positive imbalance". At this time, the excess heat comes from the "global temperature rise" caused by the earth's inability to balance this part of heat.
Scientists say the earth will enter the Little Ice Age. In fact, the earth's entry into the Little Ice Age was mainly determined by the change of sunspot activity. As we all know, the temperature change of the earth is largely determined by the sun and has a close relationship with the sun. Some scientists say that the earth will enter the Little Ice Age, which is also based on the abnormal changes of sunspots. Now the concentration of carbon dioxide on the earth is higher, which also means that the earth needs to be adjusted, otherwise it will affect the earth's ecology. Scientists have found that the heat absorbed by the earth from the atmosphere is about twice that of 15 years ago.
Whether it will appear again is still controversial in the scientific community. However, the related abnormal phenomena and changes seem to be increasing day by day, and various extreme weather and climate events are becoming more and more frequent. Perhaps from now on, the earth will enter an extreme period, which will bring great disasters to mankind. Therefore, only by consciously understanding the real reason for the emergence of the earth can we make correct decisions about the present and the future and nip in the bud.
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Question 1:B
Question 2:B
Test analysis:
Question 1: Weather refers to the specific situation of the near-surface atmosphere in a short time, whi