DENVER ‒ Smoke descended on New York City, oceans are rising, arctic ice is melting. But one of the most significant and undeniable ways Americans will be impacted by climate change is far less dramatic: Insurance.

Insurance companies across the country are increasingly altering where and how people can live in flood, storm or wildfire-prone areas. State Farm and Allstate have made national headlines recently for their decisions to not offer new homeowner policies in disaster-prone California, and other companies have pulled out of or dramatically raised rates in Louisiana, Florida and Colorado.

In other words, whether or not you believe climate change is a problem, your data-driven insurance company already does — and it’s responding, in most cases faster than government regulators. A 2022 report by USA TODAY explored a looming financial catastrophe caused in part by government assurances that people can rebuild where they previously lived, instead of being prompted to relocate somewhere safer.

A recent poll by Ipsos found that 90% of Democrats report being concerned about climate change, compared to 34% of Republicans, many of whom live in disaster-prone states like Florida and Texas.

“What you’re really getting into is having to adjust how and where we build to make things are insurable,” said Craig Fugate, the head of FEMA during the Obama administration. “The argument has always been that building restrictions make homes unaffordable. But the new question has to be: Is it insurable?”

What does climate change have to do with insurance?

Virtually anyone buying a house with a mortgage must have homeowner’s insurance, and insurance companies in disaster-prone areas have been significantly raising rates or withdrawing altogether from certain areas. If you don’t have insurance, you can’t get a mortgage.

Here’s how that connects to climate change:

  • Risk determines insurance prices: Insurance works by pooling risk among large groups of people who pay premiums, and then paying out that money to people who have suffered a loss.
  • Climate change increases disaster risk: In places where climate change is driving more destructive disasters, insurers have suffered significant losses.
  • Politicians try to cap insurance prices: Some state regulations designed to protect residents from drastic rate increases bar insurers from quickly charging higher premiums to make up those losses.
  • Insurance companies withdraw from areas where prices can’t keep up with risk: Karen Collins, the vice president for property & environmental issues at the American Property Casualty Insurance Association said something has to give. Either state regulators give insurers more flexibility to raise rates to account for climate-change related disasters and inflation, or insurers will continue withdrawing.