Climate change is making insurance more costly and challenging to obtain, with its effects now threatening the health insurance sector. Studies have shown a link between extreme weather events like heat waves and wildfires to increased hospitalizations for various illnesses. The insurance industry, traditionally reliant on historical data for modeling risks and premiums, is struggling to adapt to the unpredictable nature of climate change. Efforts include developing new models and exploring technology like wearables to better assess risks. Health insurers, unlike their counterparts in home and auto insurance already adjusting rates due to climate impacts, are facing indirect risks. Nonetheless, the industry is moving towards integrating climate risk into their financial reporting, as mandated in several regions worldwide. The impact of climate change on health insurance is particularly concerning for uninsured, low-income, and marginalized populations, who are disproportionately affected.

https://www.wsj.com/articles/climate-change-has-hit-home-insurance-is-health-insurance-next-e97aaab6