After human beings enter the industrial society, the global environment is constantly warming. So, to what extent is the earth so hot that it is not suitable for human life?
To survive in a warm environment, human beings must be able to sweat. Only when the “wet bulb temperature” determined by air temperature and humidity is slightly below 35 °C, talents can sweat.
According to a study by scientists at the Massachusetts Institute of Technology, if the Earth warms up by about 12 ° C, it will exceed this limit.
However, most scientists believe that the world will not warm to this extent for the foreseeable future.