Rising sea levels are a major threat to coastal communities worldwide and the UN Intergovernmental Panel on Climate Change estimates that by 2100 levels may rise by 28-100cm. Average levels are 30cm higher than thought–up to 150cm in south-east Asia and Indo-Pacific. Sea levels have been underestimated due to inaccurate modelling with ocean levels far higher than previously understood.
www.theguardian.com/environment/2026/mar/04/global-sea-levels-underestimated-poor-modelling-research