By the end of the XXI century, the global temperature will rise so much that it will pose a threat to the lives of many people. According to a group of researchers from the UK and USA, if greenhouse gases continue to increase at the current rate, in mortal danger because of the heat will be three-quarters of mankind.
Experts summarized the data obtained during earlier studies, and concluded that from 1980 to the present day an excessive increase in temperature in many settlements already caused the deaths of hundreds or even thousands of people. In particular, according to scientists, in 1995 in Chicago due to the hot weather and high humidity died 740 residents of Chicago, in 2003 approximately 4 900 Parisians, and in 2010-m — more than 10 800 thousand people in Moscow. In total there are over 1,900 points, where for 36 years documented cases of deaths due to excessive heat, scientists say.
The researchers argue that future climate will continue to change and the heat will become a bigger threat. In 2000 every third person on Earth had at least 20 days to be held in conditions dangerous to life air temperature, and in the future this percentage is likely to continue to grow. According to scientists, especially this issue affects tropical regions.
Climate scientists predict that if emissions of greenhouse gases will increase at the current rate, by the end of the XXI century with a life-threatening heat will face about 74 percent of the people, and even if ambitious projects to reduce emissions are successful, by the year 2100, this figure will still be 48 percent.
The authors of a study published in the journal Nature Climate Change, say that overly hot weather makes you increase the body temperature of the person, resulting in adverse health effects. High humidity, in turn, makes it less effective natural mechanism to prevent it — the sweating, the researchers note.