That temperature anomaly in the North Atlantic by eastern Greenland is believed to be a result of slowing Trans Atlantic current.
https://www.carbonbrief.org/atlanti...owed-15-per-cent-since-mid-twentieth-century/
The net overall effect of the temperature change over Greenland shows ice loss, shown here:
https://climate.nasa.gov/vital-signs/ice-sheets/
273 Billion Metric Tons per year lost since 2002
That is for Greenland
Has lost ~273 Billion Metric Tons per year since 2002
That adds up to 273*20=5460 Billion Metric Tons (approx)
For Antarctica
Has lost ~151 Billion Metric Tons per year since 2002
Antarctic ice sheet is approx
24,380,000 gigatonnes
5460 / 24,380,000 = 0.000223954061 * 100 % = 0.000123872026 %
So in the last 20 years the Antarctic has lost 0.012 % of its mass. Antarctica has 99.988% of its mass compared to 2002. Even if the rate of loss increases sevenfold to 1,000 Billion metric tons per year (which seems to not be happening as the rate seems to be linear from the graphs on the NASA website) that would mean we would lose 20,000 Billion metric tons in the next two decades.
25,460 / 24,380,000 = 0.00104429861 * 100 = 0.1044 %
Which would put us at losing 0.1044 % of the mass. Which means we would have 99.8905% of the 2002 mass, in 2042. which seems reasonable. That is in a very very bad situation where the melting rate accelerates sevenfold.
If it stays at 151 Billion Metric Tons per year, in the year 2042 we will have
151 * 40 = 6,040 Billion Metric Tons lost
6,040 / 24,380,000 = 0.000247744053 * 100 = 0.02477 %
So 99.975 % of the 2002 mass will still be there in 2042. If the rate remains the same
EDIT:
https://nsidc.org/learn/parts-cryosphere/ice-sheets/ice-sheet-quick-facts
Greenland ice sheet contains about 2.7 million cubic kilometers
At the current rate of change of 273 Billion
273*40=10920 Billion metric tons lost by 2042
10,920 / 2,700,000 = 0.00404444444 * 100 % = 0.4044
So 0.4044 % would be lost by 2042, compared to 2002.
99.5956% would remain. If we keep losing ice at the same rate (has been largely linear last 20 years according to those charts)
If the rate increases fourfold to 1,000 Billion metric tons per year, starting immediately, (a doomsday scenario) we would lose 273*20 + 1,000 * 20 = 25,460 Billion metric tons
25,460 / 2,700,000 = 0.00942962963 * 100 % = 0.9%
So we would have 99.1 % Mass remaining, by 2042. I think that gives us time.
That is somehow reassuring, even if it is exponentially increasing we have time to right the ship. I am not as doom and gloom as you