Some countries near the North Pole have large areas of frozen soil, and some have been frozen for tens of thousands or even millions of years. The remains of mammoths, reindeer and even Stone Age humans are often found in some frozen soil. Some remains are still intact, and scientists often want to revive this extinct large creature with the help of mammoth remains in permafrost.

There is hope that mammoths will be resurrected. Even if mammoths are resurrected, people don't have to worry that they will pose a threat to mankind. They must live under human slavery. What really worries people is some bacteria, viruses and other microorganisms in frozen soil. Because of its simple structure, sometimes its vitality is scary. There have been many global plagues in human history. Those infected people or other animals may be buried in frozen soil after death. The bacteria and viruses on it may spread among people. In addition, there may be new bacteria and viruses in frozen soil, and human beings lack immunity to them, which may pose a threat to human life.

This kind of thing has happened. In 20 16, an anthrax epidemic occurred in Yamal Peninsula, Russia. Many people were hospitalized and 1 12-year-old children died. Subsequent investigations showed that 194 1 a reindeer died of anthrax and was buried in the frozen soil. However, the high temperature in the summer of 20 16 led to the melting of frozen soil. After the reindeer's body was exposed, anthrax was released into soil and water, and then entered the human food chain, leading to the outbreak. Russia therefore killed 250,000 reindeer.

Last month, a paper in bioRxiv showed that ancient viruses were found in the ice of the Qinghai-Tibet Plateau about/kloc-0.5 million years ago, including 28 new virus genera. This may be just the tip of the iceberg. Bacteria and viruses existing in ice and frozen soil in other regions may still infect people or other animals, and may be new diseases or diseases that have been prevalent all over the world.

The shortage of mineral resources is a big problem facing mankind at present. In order to explore new mineral deposits, mankind has turned its attention to the vicinity of the North Pole. Among them, Greenland is rich in mineral resources, and its rare earth reserves can account for one-fifth of the world. Many people analyzed that Trump wanted to buy Greenland from Denmark because he took a fancy to its mineral resources. Greenland has begun to exploit mineral resources. Will microorganisms in frozen soil bring new diseases to human beings during mining? This is really a big problem.