close to these niklaus and we dated the biggest event to 14600 years ago that was a period when sea levels rose by 16 meters in about 400 years. the settlement caused tell the story. during certain phases the slumbering giants can awaken and the rate of ice loss can soar. in the can and we hear we can see phases like here where there's very little sediment and here these are stable phases in the ice sheet they occur in both cold and warm periods but during what is called the glaciation there are phases where there is quite a bit of ice rafting this debris carried by ice that's this period 14 and a half 1000 years ago. the drill cores show that sea levels do not always rise to slow and steady rate they have been dynamic faces in the past and we now at the beginning of such a phase what's happening in the antarctic has scientists worried in just 6 years the ice loss doubled. the ice in the antarctic contains enough water to raise sea levels by 58 meets has the ice shifts outwards towards the sea but is held back by anchor points the passive the glaciated that floats on the sea the ice shelf