Scientists from the British Antarctic Survey say the West Antarctic ice sheet is melting three times faster this century than in the 20th century. Photo/Daily Mail
LONDON – Scientists from the British Antarctic Survey say the West Antarctic ice sheet is melting three times faster this century than in the 20th century. By the end of this century, it is estimated that global sea level rise will increase by 3.2 feet or one meter.
If humans cannot control greenhouse gas emissions and make the Antarctic ice sheet melt completely, the rise in sea levels worldwide will reach 17 feet or 5.3 meters. Scientists are not too sure, but if the worst scenario occurs it would certainly be a serious threat.
The melting of the ice layer is due to the ocean temperature warming after absorbing excess heat from the atmosphere, thereby eroding the ice layer from below. This impact is most felt on the western side of the Antarctic continent.
Meanwhile, East Antarctica, which contains about 95% of the continent’s ice, remains stable. A recent study found that the amount of ice there has increased over the past 30 years.
This is in contrast to the ice sheet in the western region which is melting rapidly and is estimated to have melted around 7.5 trillion tonnes of ice. How much this melting contributes to sea level rise is still not well understood compared to other polar regions such as Greenland’s glaciers.
Dr Kaitlin Naughten from the British Antarctic Survey (BAS) said other research beyond her own suggested the case would contribute to a sea level rise of around one meter by 2100. These findings suggest humans have lost control over the melting of the West Antarctic Ice Sheet in the 21st century. .
“Our actions now will likely make a further difference in the 22nd century and beyond. “However, this is a time span that may never be seen by all of us here,” he said.
The research, published in the journal Nature Climate Change, was described by scientists as ‘serious’ because it refers to the inevitability of rising sea levels. In fact, it will likely destroy many coastal communities if it does not adapt.
Professor Alberto Naveira Garabato, an oceanographer at the University of Southampton, said the results of this research were serious and a warning. “We can still save the rest of the Antarctic Ice Sheet, which is causing sea levels to rise by about 10 times, if we start reducing greenhouse gas emissions now,” he said.