Defending U.S. shores from rising sea levels might cost an estimated $400 billion over the next two decades, in accordance with a research published Thursday.
The report by Resilient Analytics and the Facility for Climate Integrity measures that over 50,000 miles of coastal barriers, or sea partitions to decrease rising ocean levels, will have to be built in 22 states.
Over 130 counties face not less than $1 billion in costs, following the report, and 14 states will see bills of $10 billion or more between today and 2040.
“These prices reflect the bare minimal coastal defenses that communities have to build to hold back rising seas and stop chronic flooding and inundation over the next two decades,” researchers wrote in the report.
“They signify a small portion, maybe 10% to 15%, of the overall adaptation costs these local and state governments will be compelled to finance throughout that time and into the long run.”
The researchers stated that the prices for some small neighborhoods and counties would be too much for them to cover on their own.
Based on the Intergovernmental Panel on Climate Change, global sea level rise is anticipated to increase by 11 to 24 inches by 2100 under a situation in which the world limits global warming to 2 levels Celsius above pre-industrial stages. Thursday’s report calls such a state of affairs “modest.”
Under situations deemed “more believable” by researchers, sea levels may rise almost 40 inches by the top of the century if the world fails to control emissions more stringently.