Skeptical Science is partnering with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. You can submit claims you think need checking via the tipline.Skeptical Science is partnering with Gigafact to produce fact briefs — bite-sized fact checks of trending claims. You can submit claims you think need checking via the tipline.
Data from satellites and expeditions confirm Greenland has been losing land ice at an accelerating rate for decades.
Glaciers gain ice via snowfall, while melting and ice breaking off into the ocean account for nearly all of Greenland’s ice-sheet loss. Rates vary season to season and year to year due to weather variation—however, multi-decade trends show ongoing loss.
Satellites launched in the early 1990s measure ice sheet height and gravity to detect changes in mass. They have found that Greenland has lost ice every year since 1998; from 2010 to 2018, average annual ice loss was six times that of the 1990s.
Greenland has lost 5,000 gigatons of ice since 2002. Rising global temperatures of about 2°F (1.1°C) since widespread fossil fuel burning began have driven the melt. Scientists warn that positive feedback loops such as the melting of methane-rich permafrost will further accelerate ice loss.
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Sources
NASA The Anatomy of Glacial Ice Loss
NOAA Arctic Report Card: Update for 2023 - Greenland Ice Sheet
National Academy of Sciences - Earth, Atmospheric, and Planetary Sciences Forty-six years of Greenland Ice Sheet mass balance from 1972 to 2018
UCAR Greenland's Ice Is Melting
World Wildlife Fund Six ways loss of Arctic ice impacts everyone
Carbon Brief How the Greenland ice sheet fared in 2024
CNN Greenland is getting greener. That could have huge consequences for the world
About fact briefs published on Gigafact
Fact briefs are short, credibly sourced summaries that offer “yes/no” answers in response to claims found online. They rely on publicly available, often primary source data and documents. Fact briefs are created by contributors to Gigafact — a nonprofit project looking to expand participation in fact-checking and protect the democratic process. See all of our published fact briefs here.
Posted by Sue Bin Park on Saturday, 8 March, 2025
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