Our sea level is elevating 2mm every year. The cause of the sea level rising is the melting of glaciers and ice sheets on land. The sea level will increase in the future due to global warming. Unfortunately the coverage of ice sheets is unknown therefore, it is difficult to analyze the rising of the sea level. The mountain glaciers of the world are contributing 0.2-0.4mm a year to the rise of sea level. It is thought that the ice sheet Greenland is maintaining a balance but the status of the Antarctic ice sheet is uncertain, nevertheless the glaciers could be in a state of a Negative balance. The melting of the glaciers should not cause the sea level to rise. Therefore the rise of sea level is at an ambiguous state.
With the accompanying of global warming, the melting of mountain glaciers will definitely increase by 0.6 meters (2 feet) of sea level rise. The melting of the shoreline of the Greenland ice sheet will likely occur under global warming. But it won’t buffer the sea level as much as the Antarctic will. Increased melting of the Antarctic ice sheet’s marginal areas will also render more accumulation due to the warmer air and decreased sea ice. In about the year 2050 suggest a modest rise of about 0.3 meters (1 foot).