Within the last decade, 2 major ice shelves have collapsed. Also within the last decade, Earth’s temperatures have increased by 2.5 degrees celsius. An additional temperature increase by 2 degrees celsius would be catastrophic. This could only be caused by continuing greenhouse gas emissions up to 750 ppm in carbon dioxide levels. This would lead to sea level rising almost 9 inches above the current sea level without all the glacier melt included. It would take a long time for the rest of the ice on Earth to melt, however. Estimates suggest an additional lifespan of 500-1000 years for the rest of the Greenland Ice Sheet to melt, for example. The rest of the ice, like the Antarctic ice, may possibly melt within the next 100 years.
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