Scientists Warn Future , Sea Level Rise , May Be Worse Than Current Projections.<br />CNN reports that scientists have discovered that the , Antarctic ice sheet is melting , in a new, concerning way. .<br />According to a new study, current projections , may be significantly underestimating , future sea level rise. .<br />The ice sheet's "grounding line" is <br />the point at which ice rises from <br />the seabed and begins to float.<br />Warm ocean water is seeping beneath this <br />grounding line and causing accelerated melting <br />which could push the process to a tipping point.<br />The team's findings were published <br />in the journal 'Nature Geoscience.'.<br />CNN reports that a tipping point is defined <br />as a threshold at which small changes accumulate, <br />pushing a system beyond the point of no return.<br />The new study found that even a small <br />increase in ocean temperatures can have a <br />significant impact on the speed of melting. .<br />You get this kind of runaway <br />feedback, where you can have <br />a very sudden shift in <br />how much melting is <br />happening in these places, Alex Bradley, Ice dynamics researcher at BAS <br />and lead author of the paper, via CNN.<br />Alex Bradley, an ice dynamics researcher <br />at BAS and lead author of the paper, suggests , “our projections of sea level rise might <br />be significant underestimates.".<br />According to the study, the implications would be noticeable immediately, with higher sea levels <br />threatening coastal areas around the world. .<br />According to the study, the implications would be noticeable immediately, with higher sea levels <br />threatening coastal areas around the world.