In a new study, it has been discovered that the sea level rise due to the melting of glaciers or ice sheets could double in the upcoming years. It says that the current predictions or estimations regarding sea level might not be the correct one and in reality, no one could actually predict the rise in sea level in the coming years. It also warned that if man-made global warming is not checked then, the sea level rise could double what was previously anticipated. As per the study, the unstable Antarctic ice has bamboozled the scientists, and they are not able to exactly predict the future rise in sea levels occurring to the melting of ice sheets.
It also revealed that if we take immediate steps to cut greenhouse gas emissions then the possible sea level rise calamity after 2050 could be avoided. For the study, the scientists tried to figure how the sudden collapse of Antarctic ice sheet would affect different regions of the world. Hence, they paired recently discovered mechanisms that might trigger the collapse of Antarctic ice sheet. Those mechanisms include the disintegration of floating ice shelves and the ice cliff instability or the mechanical failure of tall ice cliffs facing towards the sea.
They found out that those climate models that predict about the a sudden and faster disintegration of huge parts of the Antarctic Ice Sheet are the one to look out for because the consensus put forward by IPCC in 2014 did not take into account the unstable character of Antarctic ice sheet. So, according to the researchers, the instability of Antarctic Ice sheet should not be ignored if future sea level rise estimations are to be made. Because, rising air and sea temperature could make Antarctic ice sheet more unstable and they could start disintegrating and submerge into the sea, thus making the sea level rise unexpectedly. Researchers believe that the sudden collapse of Antarctic ice sheets could result in increase of sea levels from 2 to 6 feet.
Lead author of the study, Robert E. Kopp, a professor in the department of Earth and planetary sciences at Rutgers University said that there is a There’s a lot of ambiguity in post-2050 projections of sea-level rise and we all might have to live with that for a while. “We could end up with 8 feet of sea-level-rise in 2100, but we’re not likely to have clear evidence for that by 2050, informed Kopp. Scientists said that understanding the region behind ice cliff instability is quite challenging for them.
Co-author Robert M. DeConto, scientist at the University of Massachusetts Amherst, said that they are making progress, but they still don’t know exactly when these processes might kick in, and how fast sea level might rise if they do. He further said that he ice shelves are the key as they hold back the flow of Antarctic ice toward the ocean. So, it is very important to keep them intact. So, the latest study warns us about the dire consequence of collapse of Antarctic ice sheets, and therefore it becomes crucial that we take quick, necessary steps to curtail greenhouse gases.Tags: Antarctic ice sheets, global warming