When I was talking to my colleague about COVID-19 on the subway the other day, he mentioned a concept to me, which seemed to be species segregation or species leapfrogging. COVID-19 may have no symptoms in orangutans, so when there are many orangutans, the virus will not feel the crisis of transmission and survival, but will only spread among orangutans. But if one day, the orangutan dies, the virus may accelerate its mutation and look for new hosts, such as humans.

Then, let's see why we emphasize the protection of nature now. When all species in the normal ecosystem are within the normal range, human beings will not be exposed to too many natural viruses. This is why we had a good environment when we were young. With the accelerated extinction of species, viruses began to mutate and eventually coexist with humans. But this is not what we want.

I think the biggest impact of Tonga volcano eruption is that people begin to pay attention to environmental protection and realize that they should respect nature.

The formation of El Nino will affect the main agricultural producing areas in the world. Whether it is unusually heavy precipitation or warm and dry weather, it will cause agricultural production reduction.

Having said that, it instantly reminds me of Europe ABCD. The United States is going to start a food war in 2022. If this volcanic eruption will lead to the subsequent reduction of agricultural products, the consequences will be really too serious, which can help the four major international grain merchants led by the United States to speculate on food prices.