The latest Ice Sheet Mass Balance Intercomparison Exercise (IMBIE) reports that ice loss from Greenland and Antarctica has increased fivefold since the 1990s, and now accounts for a quarter of sea-level rise. The assessment states that between 1992 and 2020, the polar ice sheets lost 7560 billion tonnes of ice – equivalent to an ice cube measuring 20 km each side.
Melting of the polar ice sheets has caused a 21 mm rise in global sea level since 1992. Ice loss from Greenland is responsible for almost two-thirds (13.5 mm) of this rise, and ice loss from Antarctica is responsible for the other third (7.4 mm).
Read full story: Ice loss from Greenland and Antarctica hits new record