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#ice sheets

Greenland contains enough frozen water to lift oceans by about seven metres (23 feet), though experts disagree on the global warming threshold for irreversible melting. Photo: Steen Ulrik Johannessen/AFP
Greenland contains enough frozen water t... […]

Greenland now a major driver of rising seas: study

Ocean levels rose 50 percent faster in 2014 than in 1993, with meltwater from the Greenland ice sheet now supplying 25 percent of total sea level increase compared with just five percent 20 years earlier, researchers say.