By Paul Homewood
Earth’s great ice sheets, Greenland and Antarctica, are now losing mass six times faster than they were in the 1990s thanks to warming conditions.
A comprehensive review of satellite data acquired at both poles is unequivocal in its assessment of accelerating trends, say scientists.
Between them, Greenland and Antarctica lost 6.4 trillion tonnes of ice in the period from 1992 to 2017.
This was sufficient to push up global sea-levels by 17.8mm.
Of that combined 17.8mm contribution to sea-level rise, 10.6mm (60 %) was due to Greenland ice losses and 7.2mm (40%) was due to Antarctica.
The combined rate of ice loss for the pair was running at about 81 billion tonnes per year in the 1990s. By the 2010s, it had climbed to 475 billion tonnes per year.
According to the IPCC, its mid-range simulations (RCP4.5) suggested global sea-levels might rise by 53cm by 2100. But…
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