A climate study has estimated that California’s costs associated with sea level rise could be more than $21.9 billion by 2040.
KOMO-TV reported Wednesday that the Center for Climate Integrity conducted the evaluation of potential costs of constructing seawalls in 22 coastal states and the District of Columbia.
Florida ($75.8 billion), Louisiana ($38.4 billion) and North Carolina ($34.8 billion) are projected to have the highest costs.
California ranked eighth between South Carolina ($20 billion) and Washington ($23.9 billion).
The effects of rising sea levels can be seen on Balboa Island, where officials added a 9-inch concrete cap to about a mile and a half of the seawalls in a roughly $1.8-million project in 2017, the Los Angeles Times reported.
The study released in June says U.S. overall costs will top $400 billion.
The analysis was done in conjunction with engineering firm Resilient Analytics and the University of Colorado.