The Membrane Domain has been conducting Human Induced Climate Change Experiments since 1999. One of the first scientist to hypothesize that global warming was exponential (as opposed to the linear models) requested fellow scientists to conduct studies.
One Membrane Domain scientists began a study on the decline of the ice mass. The analysis is on-going; however, recent data leads to the conclusion that the process is exponential:
The two largest ice sheets on earth, Greenland and Antarctica, are losing mass faster and faster. The figure below is from Velicogna and Wahr, “Time-variable gravity observations of ice sheet mass balance: Precision and limitations of the GRACE satellite data” GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 3055-3063, doi:10.1002/grl.50527, 2013
For reference, 360 GTonne of mass loss results in 1 mm sea level rise. Greenland lost more than that in 2012 alone.
Causes of Mass Loss
I. Marine terminated glaciers flow to the ocean and calve off icebergs. The figure below is from Rignot and Mouginot,”Ice flow in Greenland for the International Polar Year 2008-2009,” GEOPHYSICAL RESEARCH LETTERS, VOL. 39, L11501, doi:10.1029/2012GL051634, 2012