The sea level has increased at a rate of 50% in as little as two decades, a study from Australian and international researchers has found. Published in the Nature Climate Change journal, the study uses refined satellite data to detail exactly how the global sea level has increased from 2.2 ml yearly in 1993 to 3.3 ml yearly in 2014.
The Sea Level Has Increased at Almost Double the Pace in 11 Years
Launched in an effort to understand why the sea level has increased at an accelerated pace between 1993 and 2014, and why the information was not accurately depicted in data taken from altimeters, satellite instruments used to measure height or altitude, in spite of the accelerating contributions from ice sheets.
Based on researches undertaken by the Qingdao National Laboratory for Marine Science and Technology, CSIRO Australia, and the Universities of NSW, Tasmania and Arizona, the reason why the sea level has increased this fast is that the Greenland ice sheet is melting. And, as it is known, the Greenland ice sheet is a major contributor to the sea supply of the world.
Even more so, researchers estimate that the Greenland ice that has melted supplies approximately 25% of the global sea level rise, in comparison with a 5% sea level increase 2 decades ago. And these new findings add to the concern that the global ocean watermark will rise faster than what was previously forecasted. This, researchers say, could, and will have a serious and heavy impact on the world.
The researchers gathered data taking into account three factors: the expansion of the ocean due to rising global temperature, the changes regarding the amount of water kept on land, and the loss of land-based ice from ice sheets and glaciers in Antarctica and Greenland.
If the sea has an increased level that will continue steadily, by the end of the 21st century, the sea levels might reach 33 centimeters. Even more worrisome, if the rise of global temperature is taken into account, the sea levels might spike from 3 to 6 feet by 2100.
Image Source: Pixabay
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