A shocking study reveals that climate change could raise sea levels by 7 feet by 2100



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Ocean levels are rising because of climate change and the long-standing view is that sea level would rise by nearly three feet by 2100. A startling new study suggests that this view is terribly incorrect. Instead, sea level could increase more than double if world temperatures rise more than expected.

If sea levels were to rise by more than two meters (6.5 feet), what the study authors believe is possible, an event that they say is "within the bounds of the uncertainty of 90 % "could have catastrophic consequences. A rise in temperatures of 5 degrees Celsius would result in a significant drop in ice levels in Greenland and Antarctica. At 2 degrees Celsius, Greenland would be the main concern for contributing to sea level rise.

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For comparison purposes, an increase of one meter announced in the 2013 report of the United Nations Intergovernmental Panel on Climate Change (IPCC) could result in a loss of land equivalent to that of from France, from Germany, from Spain and from Great Britain. millions of people.

"A sea level rise of this magnitude would clearly have profound consequences for humanity," said the report's 2013 authors. The consequences could severely damage coastal cities such as New York, Miami and the islands. Hawaii, in the near future.

The global level of the seas has increased by about 3 millimeters a year, according to the new study published in the Proceedings of the National Academy of Sciences.

The authors of the new study believe that the 2013 UN report did not go far enough and examined only what is "likely" to happen and not the highest probabilities; now, they said it could be misleading for regulators trying to make decisions.

"Limiting attention to the" likely "range, as was the case in the IPCC's Fifth Assessment Report, could be misleading and will likely result in a misjudgment of actual risks," he said. one of the authors of the study, Willy Aspinall, in a statement. declaration.

The new study examines estimates of what could happen in the event range of 5 to 95%, while the 2013 US report looked at the range of 17 to 83% and predicted a rise of 2 degrees Celsius .

While an increase of 5 degrees Celsius would be considered scientifically unlikely, the study's lead author, Jonathan Bamber, told the BBC that it was important to look at lower values ​​because their significance was statistically significant.

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"When you start looking at these low probabilities, but still plausible, the experts believe that there is a small but statistically significant probability that West Antarctica is turning into a very unstable state and that some parts of the Eastern Antarctica are also beginning to contribute, "Bamber told the press briefing. "But it's only at these higher probabilities for 5C that we see this type of behavior coming into play."

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