Climate Change & Credit Score: What You Need to Know
- Mortgage lenders are increasingly scrutinizing borrowers' exposure to climate risk, adding a new dimension to credit-worthiness assessments.
- A report by First Street, a climate risk assessment firm, indicates that climate considerations, including flood, wildfire, and wind risks, are now factored into credit score evaluations.
- This evolving landscape means a consumer's credit score could fluctuate based on their property's climate risk, potentially leading to higher borrowing costs.
Climate change is reshaping mortgage lending, directly influencing your credit score and financial well-being. Discover how increased climate disasters are elevating foreclosure risks, especially in states like California and Florida. News Directory 3 underscores a pivotal shift, as climate risk assessments join conventional credit factors.Learn how your property’s climate risk exposure may impact borrowing costs, potentially leading to higher expenses. The First Street report reveals that climate-driven foreclosures could trigger billions in bank losses. Explore how rising insurance premiums and extreme weather events are influencing property values and the mortgage market. Uncover the hidden credit loss risks linked to climate change. Discover what’s next for homeowners and lenders in this evolving financial landscape.
Climate Change Impacts Mortgage Lending, Credit Risk Assessment
Mortgage lenders are increasingly scrutinizing borrowers’ exposure to climate risk, adding a new dimension to credit-worthiness assessments. As climate disasters become more frequent and costly, financial institutions are paying closer attention to potential losses. This shift affects consumers,particularly in high-risk areas,and could influence property values and borrowing costs.
A report by First Street, a climate risk assessment firm, indicates that climate considerations, including flood, wildfire, and wind risks, are now factored into credit score evaluations. This is alongside conventional factors like debt, income, and collateral. The report projects that climate-driven foreclosures could lead to $1.21 billion in bank losses this year, potentially rising to $5.36 billion within a decade.
This evolving landscape means a consumer’s credit score could fluctuate based on their property’s climate risk, potentially leading to higher borrowing costs. Currently, lender losses are concentrated in California, Florida, and Louisiana.
Jeremy Porter, head of climate implications at First Street, said, “Mortgage markets are now on the front lines of climate risk. Our modeling demonstrates that physical hazards are already eroding foundational assumptions of loan underwriting, property valuation, and credit servicing—introducing systemic financial risk.”

Properties damaged by extreme weather events face higher foreclosure rates. Historically, foreclosures surge by an average of 40% among flooded homes, according to the report. Rising insurance premiums in high-risk areas, such as the Florida coasts, are also contributing to foreclosures as homeowners struggle to afford coverage.
While some lenders mandate flood insurance in government-designated flood plains, the broader effects of future climate change are not consistently integrated into underwriting models. Fannie mae has been exploring incorporating climate risk assessments but has yet to implement changes.
Over the past four decades, the annual costs of climate-related disasters have increased by 1,580%, according to the First Street report, which analyzed data from the National Oceanic and Atmospheric Management (NOAA). This surge is attributed to increased storm severity, inflation, and greater development in vulnerable coastal areas.
Porter added, “There is a important amount of credit loss risk related to climate that is currently hidden from traditional credit loss models. This reports the systemic effect weather disasters are having in the mortgage market from both direct damages, but also indirect impacts like increasing insurance costs.”
What’s next
As climate risks become more pronounced, lenders are expected to further refine their underwriting models to account for these factors. This could lead to more tailored mortgage products and insurance options, as well as increased investment in climate resilience measures to protect properties and mitigate financial losses.
