Study Finds Sea Levels Underestimated by One Foot, More People at Risk

In Brief

A new Nature study reports coastal sea levels are about one foot higher than previously estimated.

Key Facts

• A study published in Nature found most sea level rise research underestimated coastal water heights by about 1 foot or 30 centimeters.
• Nearly 30 percent of the U.S. population lives along the coasts.
• The study suggests tens of millions more people are at risk from rising sea levels than previously thought.
• Researchers found hundreds of millions of people are closer to peril due to underestimated sea levels.
• The study indicates previous assessments of coastal risk may need to be revised.

What Happened

Researchers published a study in Nature indicating that previous estimates of coastal sea levels were on average one foot too low, potentially exposing many more people to risk from sea level rise.

Why It Matters

The findings suggest that the number of people vulnerable to coastal flooding and related hazards is significantly higher than earlier projections. This may affect future planning and policy for coastal regions.

What's Next

Experts may re-examine coastal risk assessments and adaptation strategies in light of the new data. Further research could focus on updating models and evaluating regional impacts.