From the highest level in 40 years, the Antarctic ice area has reached its lowest level in just four years.
After decades of mysteriously expanding areas, the Antarctic ice sheet in recent years has shrunk considerably , equivalent to more than four times the area of France, and is currently low. record, alarm scientists in recent research.
According to the study, in the period of 1979-2014, the Antarctic ice area continuously expanded, but in 2014-2017 it was suddenly narrowed.
It is worth noting that until now, the scientific community has not been able to accurately explain the cause of this situation.
From the peak of 12.8 million km 2 , today the ice area in Antarctica has "lost " 2 million km 2 mysteriously. In other words, from the highest level in 40 years, the Antarctic ice area has reached its lowest level in just four years.
To get this conclusion, scientists use NASA sound wave measurement data and from military satellites in the above stages to get the most accurate "picture" of an area. ice surface , but not the ice thickness in Antarctica.
There are many suggestions that this change is due to the transformation of all things from holes in the ozone layer to changes in wind direction and ocean currents. However, these are just unproven hypotheses.
The study is published in the Proceedings of the National Academy of Sciences (PNAS).
A 2013 study warned that Antarctic ice melting could completely cause sea level rise of 57m.
The world's largest freshwater supply
While the Arctic is an ocean surrounded by land, Antarctica is the continent surrounded by oceans. Unlike the Arctic, the climate in Antarctica is not warmed and it is still the coldest place on Earth as well as the world's largest freshwater supply.