If you were to do an overall summary of the trends in ice mass or volume on earth broken down into the following categories, how would you go about it?
Antarctic Ice sheet mass
Greenland ice sheet mass
Arctic sea ice mass
Antarctic sea ice mass
Glacier ice mass worldwide
Permafrost ice mass worldwide
(Listed in approximate order of size)
I was thinking of using annual averages, and doing a simple comparison of the long term average to the past five year average to the most recent year where these figures exist (no idea if they do at all for permafrost).