Study Finds Underestimation of Coastal Water Levels Raises Sea Level Rise Risks

A recent study published in Nature found that many sea level rise assessments underestimate baseline coastal water heights by about 30 cm, particularly in the Global South, Pacific, and Southeast Asia. This underestimation stems from mismatched measurement methods for sea and land altitudes, overlooking factors like tides, waves, and currents. Researchers warn this could increase projected coastal flooding risks, potentially affecting millions more people than previously estimated as sea levels continue to rise.