According toa show I watched on theHistory Channel last night,the arctic ice pack loses54 cubic miles of ice, per year due to global warming. They also stated that CO2 levels in air bubbles trapped in ice in the arctic and antarctic put Co2 levels of the past to be 280. Reportedly, the CO2 level of 280 has historically been the standard/stable level. Our current level is 360. Just thought you should know what the History Channel has to report.