A recent study has revealed that global coastal sea levels are higher than previously estimated, posing a greater threat to populations residing near coastlines. Scientists from Wageningen University and Research have discovered a 'blind spot' in numerous studies that have led to the underestimation of current sea levels. The study, published in Nature, emphasizes that most coastal hazard assessments depend on land elevation measurements and geoid models, which may not accurately depict actual sea levels influenced by ocean currents, winds, tides, and other factors. The findings indicate that sea levels are, on average, 30cm (1ft) higher globally, with regions such as Southeast Asia and the Indo-Pacific experiencing levels up to one meter (3ft) higher than previously believed.