Climate and Sustainability Roundup: Policy Push Progresses on Protection Gaps

Key Takeaways

• 49% of $220 bn catastrophe losses insured in 2025, record low gap
• Emerging economies still leave 80‑90% of losses uninsured
• Australia may see 25% of homes uninsured by 2050
• ClimateWise launches Insurability Readiness Matrix for regulators
• EU advances sustainability reporting standards for insurers

Pulse Analysis

The 2025 protection‑gap milestone, where just under half of global catastrophe losses were insured, marks a turning point for the reinsurance sector. By capturing $108 bn of the $220 bn total, insurers demonstrate growing capacity to absorb climate‑driven shocks, a trend driven by higher premiums, better risk modelling, and expanding coverage in mature markets. This shift reduces the fiscal burden on governments after disasters and encourages private‑sector investment in resilient infrastructure, reinforcing the broader climate‑adaptation agenda.

Despite the headline figure, the gap remains stark in regions most vulnerable to climate change. In many emerging economies, up to nine‑tenths of loss values still go uninsured, exposing households and businesses to catastrophic financial ruin. Australia’s regulator warns that a quarter of its housing stock could be without coverage by mid‑century, a scenario that could amplify social and fiscal pressures. In the United States, state legislators are openly criticizing the non‑life insurance industry, pushing for reforms that would tighten building codes and incentivize mitigation. ClimateWise’s new Insurability Readiness Matrix offers a practical tool for insurers, regulators, and governments to flag assets approaching the limits of coverage and to design pre‑emptive interventions.

Europe is simultaneously tightening the sustainability framework that underpins insurance underwriting. The European Insurance and Occupational Pensions Authority is shaping revisions to the European Sustainability Reporting Standards and clarifying the EU green taxonomy, ensuring that capital flows align with climate goals. Parallelly, the Partnership for Carbon Accounting Financials (PCF) is nearing 40 insurer members, expanding the data pool for carbon‑risk assessment. Together, these initiatives signal a convergence of risk‑transfer mechanisms and ESG reporting, positioning insurers as pivotal actors in the transition to a low‑carbon economy.