Lead
Scientists predict that the earth's temperature will rise to more than 40 degrees in 250 million years, and the humidity on the earth's surface will be greatly reduced, and the highest temperature that humans can adapt to is about 50 degrees, so at that time human beings will not be able to survive on the earth and eventually become extinct.
In addition, global volcanic eruptions also pose a great threat, such as the Changbaishan volcano on the mainland, scientists have studied this volcano and found that this volcano erupted tens of thousands of years ago, when the eruption ash even drifted to Greenland, which shows how amazing the destructive power was at that time.
According to scientists' research, the eruption cycle of this volcano is once every 20,000 years, and now it has been 10,000 years since the last eruption, which means that this volcano may wake up at any time, posing a huge threat to the surrounding areas of the continent.
So how should humanity respond to these challenges?
1. Survival plan.
For human civilization, although human beings have the time to survive on the earth, this does not mean that human civilization can never be extinct, because human civilization has a time to survive on the earth after all, scientists predict that the earth's temperature will rise to more than 40 degrees in 250 million years, and the humidity on the earth's surface will be greatly reduced, and the highest temperature that humans can adapt to is about 50 degrees, so at that time human beings will not be able to survive on the earth, and eventually become extinct.
Faced with these challenges, researchers have come up with different survival options.
1. Migration extraterrestrial.
Some scientists believe that mankind should step up exploration and research on other planets in case of emergency.
Scientists have also found that Mars, the closest to the earth, has water resources, and human beings cannot live without water resources, so many scientists have proposed that human beings should build the earth into a space colony ship and migrate to live on planets outside the earth.
At present, the mainland's Tiangong space station is also serving this kind of research, and the Tiangong space station is a space colony ship that can carry human migration in the future.
2. Coexist and die with the earth.
Other scientists believe that although human civilization will eventually become extinct on the earth, life on the earth still has a chance to survive after all, so human beings should better protect the earth and slow down climate change to prolong the survival time of human beings.
In 250 million years, when the earth's temperature rises to more than 40 degrees, human civilization will gradually become extinct, and life on Earth will gradually evolve, adapt to the new environment, and continue to continue life.
2. The threat posed by global volcanoes.
In addition to the earth's own climate change, global volcanic activity is also a major threat to human civilization, global volcanic activity has an important impact on the survival of human beings, if the global volcanoes erupt at the same time, then the destructive power brought by the eruption will be extremely huge, and it will also pose a threat to the survival of human beings.
1. The impact of global volcanic activity.
The impact of global volcanic activity is very large, for example, after some volcanic eruptions, it may cause global temperature drops, and the impact of this temperature drop will be immeasurable, which will lead to changes in the global climate, and may even lead to a decline in global food production, which will lead to a threat to the survival of human beings.
Another effect of global volcanic activity is the greenhouse effect, scientists have studied global volcanic activity and found that global volcanic activity will cause a large amount of carbon dioxide and sulfur dioxide to enter the atmosphere, thereby exacerbating the greenhouse effect and causing global temperature to rise.
For example, 1000 years ago, the global temperature was caused by global volcanic activity, and the temperature at that time was 3 degrees higher than now, which also caused the climate at that time to be hotter, which also led to the global drought at that time, and the Yellow River on the mainland was also due to the arid climate at that time, which led to the water level of the Yellow River lowering, which led to the Yellow River becoming a seasonal river at that time.
2. The threat of the Changbai Mountain volcano.
In the mainland, there are also many active volcanoes, the most famous of which is the Changbaishan volcano, Changbaishan volcano is also the youngest volcano in the mainland, the eruption history of this volcano is not very long, but once this volcano began to erupt, it will pose a huge threat to the surrounding areas of the mainland.
Scientists have studied the Changbaishan volcano and found that this volcano erupted tens of thousands of years ago, and the eruption ash even drifted to Greenland, which shows how destructive the volcanic power was at that time.
According to scientists' research, the eruption cycle of this volcano is once every 20,000 years, and now it has been 10,000 years since the last eruption, which means that this volcano may wake up at any time, posing a huge threat to the surrounding areas of the continent.
Therefore, the mainland government also attaches great importance to the Changbaishan volcano and evacuates the surrounding people in case of emergency.
epilogue
In fact, the challenges faced by human beings not only come from natural disasters on the earth, but also from the impact of their own behavior, such as some nuclear explosion tests may trigger natural disasters such as earthquakes and volcanic eruptions, which will pose a threat to the survival of human beings.
Therefore, if human beings want to survive better, they need to better protect the earth's environment and mitigate climate change to prolong the survival time of human beings.
At the same time, global volcanic activity is also a major threat to human survival, and international cooperation and attention to volcanic activity in various countries are also a major guarantee for human survival.