A trend of insurance companies backing away from extreme-weather-threatened regions might leave taxpayers on the hook for more natural disaster cleanup efforts, according to a report released Thursday.

This past summer’s wildfires in the West and drought in the Midwest showed extreme weather affects more than just coastal regions, Mindy Lubber, president of Ceres, the business sustainability group that published the report, said in a Thursday conference call.

Lubber said Congress “needs to look at where the federal government is being asked to pick up markets the insurance companies no longer want to be in, and ask if that’s the right policy.”