Back to today’s briefing

Story perspectives

Study Reveals Ocean Mass Rise Drives Sea-Level Increase

9/23/2025

41 8

Summary

Story summary

From 1993–2022, researchers at The Hong Kong Polytechnic University find ocean mass rise dominates sea-level increase, about 60% with Greenland a major contributor.
Global sea level rose ~90 mm, or 3.3 mm/year, mainly due to melting land ice.
Satellite Laser Ranging (SLR) enabled accurate ocean mass estimates.
Findings published in the Proceedings of the National Academy of Sciences; monitoring needed.

1 of 1

Story summary

From 1993–2022, researchers at The Hong Kong Polytechnic University find ocean mass rise dominates sea-level increase, about 60% with Greenland a major contributor.
Global sea level rose ~90 mm, or 3.3 mm/year, mainly due to melting land ice.
Satellite Laser Ranging (SLR) enabled accurate ocean mass estimates.
Findings published in the Proceedings of the National Academy of Sciences; monitoring needed.