Global sea levels have been underestimated due to poor modelling, research suggests

on Mar 06, 2026 02:20 am

Tara Russell,    –  The Guardian (U.K.)

Stephan: While Trump is focused on bullying the world and imposing his imperialism on other countries, he is paying no attention whatever to climate change which, as it turns out, is happening faster and is worse than even climate scientists realized until just weeks ago when a new analysis of the data was carried out.

The island of Toruar in eastern Papua New Guinea is threatened by rising sea levels. Credit: Kalolaine Fainu / The Guardian

Sea levels around the world have been underestimated due to inaccurate modelling, with research suggesting ocean levels are far higher than previously understood.

The finding could significantly affect assessments of the future impacts of global heating and the effects on coastal settlements.

Globally, the research found ocean levels are an average of 30cm higher than previously believed, but in some areas of the global south, including south-east Asia and the Indo-Pacific, they may be 100-150cm higher than previously thought.

Rising sea levels are a major threat to coastal communities across the world, and the UN Intergovernmental Panel on Climate Change (IPCC) estimates that by 2100 levels may rise by 28-100cm.

The latest research, published in Nature, combined the analysis of 385 pieces of peer-reviewed scientific literature released between 2009 and 2025 with calculations of the difference between the commonly assumed and actual measured coastal sea levels.

Authors Dr Philip Minderhoud of Wageningen University in the Netherlands and PhD […]

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