Climate warming also has a "critical value". What impact will global warming bring to mankind?

Many people have already felt the abnormal global climate change of 202 1. Compared with previous years, the climate in 20021year showed many anomalies. Brazil, located in the tropics and subtropics, has experienced "once in a hundred years" snowfall and freezing rain; The originally arid Taklimakan desert actually experienced floods; The high temperature and drought in North America directly led to the loss of hundreds of human lives. These anomalies are telling us about the changes of the earth's climate and environment.

One of the most important reasons for climate change is climate warming. Since the last century, we humans have entered the era of the third industrial revolution, which enabled us to invent more advanced means of communication, such as cars and computers, but the development of human civilization has also caused serious "destruction" to the earth. We have released a lot of greenhouse gases into the atmosphere, which will aggravate global warming and bring about great changes in the climate and environment on the earth.

There is also a "critical value" for climate warming. There is a critical value for climate warming. If this critical value is reached, the earth will not be far from "collapse", so how long will mankind be from the critical value? Let's take a look.

The causal relationship between climate and biological extinction The main reason why organisms can survive unscathed on the earth is that the climate environment on the earth is suitable for biological survival. Part of the reason is that in the process of evolution and development, organisms have evolved the ability and physical quality to adapt to the modern climate. However, if the climate and environment suddenly change, so that organisms can not adapt, it will lead to the extinction of organisms.

There have been many mass extinctions on the earth, including the impact of alien meteorites on the earth, and the temperature dropped. According to the research of scientists, climate warming will also lead to extinction, and there have been examples on the earth before.

What impact will global warming bring to mankind? Global warming will directly affect the living environment of human beings and other creatures, because now we have really felt the great changes brought by climate warming to the earth. This year, Greenland's glaciers are melting at an accelerated rate. When these large glaciers melt into the ocean, the sea level will rise, so coastal areas and low-altitude areas will be submerged by seawater, and people in these areas will lose their homes.

Climate change will also increase extreme weather on earth, such as drought and flood. In 20021year, many countries in North America suffered from persistent high temperature and drought, and the once-in-a-century rainstorm in Zhengzhou, China also claimed many lives. If this extreme climate continues to affect human beings, then the main performance is the reduction of crop production, and there are so many people on earth, if there is a food crisis, it will also increase the probability of war and disease.

Climate warming has a very serious impact on human beings. Not only sea level rise, but also extreme weather, fresh water crisis, hypoxia, ocean acidification and other factors will directly affect human life and death. Now we are very close to the critical climate value.

According to scientists, the critical value of climate warming is about two degrees. At present, human activities have warmed the climate by more than 1.5 degrees, so the earth environment we live in is "in jeopardy".