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North American Ice Melt Contributed 30 Feet to Sea Levels

10/27/2025

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Summary

Story summary

Tulane University researchers report that North American ice-sheet melting contributed over 30 feet to global sea levels between 9,000 and 8,000 years ago.
This finding challenges the belief that Antarctica was the primary source of meltwater.
Antarctica’s second-lowest ice coverage this summer highlights urgency to address climate change and its sea-level implications.

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Story summary

Tulane University researchers report that North American ice-sheet melting contributed over 30 feet to global sea levels between 9,000 and 8,000 years ago.
This finding challenges the belief that Antarctica was the primary source of meltwater.
Antarctica’s second-lowest ice coverage this summer highlights urgency to address climate change and its sea-level implications.