Climate Change and the Insurance Industry: Escalating Risk, Market Adaptation, and the Emerging Challenge of Insurability
Climate change is increasingly affecting the global insurance industry through rising catastrophe losses, expanding underwriting uncertainty, and growing regional exposure to environmental risk. Over the past decade, insured losses associated with weather-related disasters have remained consistently elevated, with recent years repeatedly exceeding $100 billion in annual insured catastrophe losses globally. According to recent estimates from Swiss Re, insured losses from natural catastrophes reached approximately $108 billion in 2025, continuing a broader trend of sustained loss escalation.
This paper examines how projected climate trends may affect the insurance sector between 2026 and 2035, with particular attention to underwriting, reinsurance, market availability, and consumer affordability. It also considers how increasing environmental volatility may influence different sectors unevenly, creating geographic and economic disparities in access to insurance coverage. The paper argues that climate change is beginning to alter some of the statistical assumptions upon which modern insurance systems have historically depended.