Unfortunately, Totten is just one of many large glacial systems that are now destabilizing across Antarctica. And researchers are now beginning to identify significant potential sea level rise contributions from Antarctica alone (ranging from two feet to nearly two meters) before the end of this Century. In New Scientist, during March, Antarctic researcher Rob Deconto notes:
“Today we’re measuring global sea level rise in millimetres per year,” DeConto says. “We’re talking about the potential for centimetres per year just from [ice loss in] Antarctica.”
Centimeters per year sea level rise is about ten times faster than current rates and implies 100 year increases — once it gets going — in the range of 2 to 3 meters. Such increased melt does not include Greenland’s own potential sea level rise contribution. Nor does it include sea level rise from other glacial melt and ocean thermal expansion. As such, it appears that multi-meter sea level rise is becoming a more and more distinct possibility this Century. Furthermore, the paleoclimate context is now pointing toward catastrophic levels of overall melt and sea level rise if global greenhouse gasses aren’t somehow stabilized and then swiftly reduced.
And don't forget Sea-Level Changes -- with a lot of rises away from Greenland and especially Antarctica -- from the redistribution of waters released from the Ice caps' gravity.
A meter here, a meter there and pretty soon you’re in for some wicked serious sea-level rise!