Ice losses from Antarctica have increased global sea levels by 7.6 mm since 1992, with two fifths of this rise (3.0 mm) coming in the last five years alone. The findings are from a major climate assessment known as the Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE). It is the most complete picture of Antarctic ice sheet change to date -- 84 scientists from 44 international organizations combined 24 satellite surveys to produce the assessment.