A glacier the size of Florida is unstable. He Saying impact on global sea level

melting ice sheets in Antarctica, in particular one of the largest and most unstable glacier in the region could significantly accelerate raising of the global sea level, according to a new report. Climate researchers who are likely results of the glaciers melt at the bottom of the world focused the study on the Thwaites Glacier, an area the size of Florida measured in western Antarctica, which is considered the most unstable continent. The study found that although no additional climate change is happening in the future, the Antarctic ice sheet is more likely to be unstable. It also states that a destabilization of the glaciers of Antarctica, it is increasingly likely that the sea level will rise faster. “Based on our previous climate changes, there is a certain amount of increase in sea level is that will occur in any case, in the future,” Alex Robel, a professor and assistant glaciologist at the Georgia Institute of Technology, tells TIME. He and two other scientists from the California Institute of Technology and the University of Washington wrote the report of the National Academy of Sciences published. Earlier this year, a NASA study found that a huge cavity, two-thirds had developed the Manhattan area under Thwaites, highlight the unexpected accelerated melting in the region. “It ‘s definitely think about human level or embarrassed to acknowledge the fact that there is a certain amount we already have engaged in a future not in terms of sea level rise again,” said Robel. The amount of ice flowing out of the region has almost doubled in the last 30 years, losing 35 billion tons of ice per year between 2009-2017 alone. This is equivalent to 3% of the Robert Larter, a marine geophysicist at the British Antarctic Survey current rate of sea level rise. Sea ice sheets that form when heated sea water area between the ground floor of the sea and the ice melts a cavity as a result, are at risk of collapse. Scientists fear that the remaining ice would cause them to melt faster. “It is a contribution of 3 percent, was not there 45 years ago,” says Larter TIME. He says that could rise by two feet, the global sea level by a bit ‘of all the ice more Thwaites glaciers. “If you compress an entire glacial system then you are creating a new front on the other glacial systems that there were limits. Certainly not stop things,” said Larter. The sea level is currently rising at a rate of 3.3 mm per year, and increased by 91 mm in 1993 by NASA. What the study showed exactly? Robel, along with scientists Helene Seroussi Gerard Roe and used to make projections of analysis and mathematical modeling of computer the sea level in the future. They wanted as possible scenarios of the future increase in understanding sea level as a result of marine ice sheet instability could change over time. “The more you experience these marine ice sheet instability, the greater the range of possible future sea level rise is,” said Robel. “Not only that, but this area is the sea level began to decline at a more rapid increase scenarios.” When they tested these predictions with the help of a model of the computer Thwaites glaciers, they reached the same conclusion. The simulation confirmed what scientists have seen how Larter western Antarctic expeditions and field studies on earlier models of Thwaites glaciers have shown that more and more unstable glaciers always will. These simulations also show that to seek an important role for future expeditions to narrow the possible scenarios of rising sea level Thwaites said Robel. “It ‘s always in terms of our future projections a certain degree of uncertainty, but this does not mean that we have some very important things they do not know,” he added. For example, it is certain that there will be a rise in sea level due to climate change in the past will continue, he said. “A fact that we keep close in mind that our clear future actions because of sea-level change may occur in the future.” “The bigger, there are some jokers in the deck here and others we have in the past few years, we have learned more growing uncertainty” Larter, Antarctica 15 years has studied and Thwaites Glacier in scientific expeditions traveled Thwaites international cooperation, collaboration of scientists from the US and the UK, he says. “To limit the uncertainty of the scope of what we tried to do as a scientist and give a better prediction, but somehow, the more you find, the more uncertainty we are finding out.” What does the ice sheet instability for the future of Antarctica and the world? West Antarctica has the potential to raise sea level by five meters, while East Antarctica was 50-60 meters of ice can be added across the continent melt, Anders Levermann, climatologist at the Potsdam Institute for research on the impact climate in Germany, tells TIME. To put that into perspective, it has about 20 centimeters of sea level rise over the last 100 to 120 years, according to Lever man. Since 1992, satellite observations of Antarctica have discovered that ice sheets contribute to rising global sea level. Most of the loss of eggs comes from Antarctica West Antarctica form. What is still uncertain how fast the continent is losing ice or if the instability of Thwaites of sea ice cover is said that the cause of climate change, but Leva man, was safe just is not enough research to know . “It ‘s very strange that nothing has happened in West Antarctica for 10,000 years, and is now [unstable] 100 years after we started the temperature of the planet disorder,” says Lever man. “The heat that we do to the planet, the more ice you lose.” He added that there are several layers of sea ice in Antarctica that could be destabilized if warming continues. Lever man tells scientists a lot more in the next 20 years, the course of the research will, adding that the world should prepare for a significant rise in sea level by 2100, and monitor changes in Antarctica and Greenland. The Intergovernmental Panel on Climate Change projected to increase from 0.26 to 0.77 meters above sea level by 2100 if warming increases by 1.5 degrees centigrade above pre-industrial temperature-19th century levels, or 2.7 degrees Celsius. Global temperatures have risen by about 1 degree Celsius since pre-industrial times, Larter says, which means there are only about 0.5 degrees to the left for the global temperature to rise. Why go rise in sea level? “Regardless of whether this is the people-was created by no scientific evidence it is still a distinct possibility, but other than that we increase the risk of rising sea levels and the accelerated sea level rise from Antarctica with a global warming, “says Lever man. coastal cities around the world are at risk if sea levels continue to rise. Robel said that there is recognition of the nations must in the world that is increasing its sea and you have to prepare for them by adapting the infrastructure and the adoption of measures to prevent the problem will worsen. “No one should be afraid of the rising sea level. If you’re not stupid, you do not die in the sea level, because it is so slow that it is time to protect against them or to leave the country”, he says the ‘ Lever man. “That said, it would be stupid not been taken seriously with climate change and rising sea level.”
Picture copyright by Dr. Aleksandra Mazur, University of Gothenburg, Sweden