Happy Wednesday. Today’s RMN Morning Brief is about what happens after a risk model identifies the danger—and institutions, capital providers and households have to decide what to do with that information.
- How the White House is trying to determine which climate scenarios can be used in federal planning, regulation and spending.
- Why federal disaster aid may do more than replace destroyed property by supplying the liquidity that reshapes a local economy.
- How Hurricane Helene turned the insurance protection gap into a relocation trap for households that understand their risk but cannot afford to escape it.
White House Moves to Rewrite the Rules for Climate Risk Models
The Trump Administration is attempting to turn a scientific scenario update into a federal risk-model governance rule, potentially forcing agencies to revisit climate-conditioned estimates used for infrastructure, coastal planning, economic damages and financial risk.
- The White House Office of Science and Technology Policy and U.S. Global Change Research Program have proposed amending the Fifth National Climate Assessment to restrict federal use of projections based on the highest emissions scenarios.
- Results dependent on RCP8.5, SSP5-8.5 or analogous pathways would be classified as “implausible scenario outputs” rather than expected or central planning futures.
- That designation would follow the results into federal planning documents, regulatory analyses, vulnerability assessments, grant decisions and public communications.
The proposed amendment, issued yesterday, does not simply update the emissions assumptions underlying federal climate projections. It establishes rules governing which modeled futures remain suitable for government decision-making.
