The Greenland Ice Sheet, the largest mass of ice in the Northern Hemisphere, is losing about 267 billion tons of ice per year.
Notes on verification
Matches NOAA's 2019 Arctic Report Card almost exactly; corroborated by NASA data within normal measurement variation (264-279 billion tons/year across different averaging periods). [tier=bronze indep_score=0.539 clusters=2 claim_tier=notable]
Sources
- Scientists Shed Light on the Mysterious 'Cold Blob' in ... (seed:science_and_space)
- https://arctic.noaa.gov/report-card/report-card-2019/ (corroboration)
- https://science.nasa.gov/earth/explore/earth-indicators/ice-sheets/ (corroboration)