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Glaciers Lost 6.54 Trillion Tonnes of Ice Since 2000, Driving Sea-Level Rise
Between 2000 and 2023, glaciers lost an estimated 273 billion tonnes of ice annually, making them the second-largest contributor to rising sea levels, according to a new study published in Nature. The total global ice loss during this period reached 6.54 trillion tonnes, raising sea levels by 18 millimeters (mm) and contributing 0.75 mm of sea-level rise per year.
The study revealed that ice loss accelerated by 36% in the second half of the study period (2012-2023) compared to the first half. Recent years saw the most severe losses, with the 2019-2023 period witnessing annual ice loss exceeding 400 gigatonnes per year (Gt/yr), including a record 548 Gt/yr in 2023.
“This underscores the Intergovernmental Panel on Climate Change’s call for urgent action to cut greenhouse gas emissions ...