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

Many people have already felt it. Compared with previous years, the climate in 221 has many abnormal situations. Brazil, located in tropical and subtropical areas, has experienced "once-in-a-century" snowfall and freezing rain; The originally arid Taklimakan desert actually experienced floods; The high temperature and drought in North America directly caused human beings to lose hundreds of lives. These abnormal situations 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. However, the development of human civilization has also caused serious "destruction" to the earth. We have discharged a lot of greenhouse gases into the atmosphere, which will aggravate global warming and make great changes in the climate environment on the earth. Climate warming also has a "critical value"

Climate warming has a critical value. If it reaches this critical value, the earth will not be far from "collapse", so how long will mankind be from the critical value? Let's take a look together. Causality between climate and biological extinction

The main reason why organisms can live "unharmed" on the earth is that the climate environment on the earth is suitable for their survival. Part of the reason is that organisms have evolved the ability to adapt to the modern climate and physical quality in the process of evolution and development. However, if the climate and environment change suddenly, 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 drop in temperature. According to scientists' research, 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 actually felt the great changes brought by climate warming to the earth. Glaciers in Greenland have been melting at an "accelerated pace" this year. 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 the earth, such as droughts and floods. In 221, many countries in North America have already suffered from persistent high temperature and drought, and once-in-a-century heavy rain occurred in Zhengzhou, China, which also claimed many lives. If this extreme climate continues to affect human beings, then the main performance will reduce the output of crops, 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, 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' speculation, 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 where we live is already "in jeopardy".