Willis unveils new technology to counter existential risk to property insurance from climate change volatility

Willis, part of WTW (NASDAQ: WTW), introduced an upgraded Climate Diagnostic model on June 15, 2026, to address climate-related volatility in property insurance markets. The tool, embedded in WTW’s Risk IQ platform, predicts the impact of floods, windstorms, and other climate hazards on an organization’s assets, operations, and supply chains. As extreme weather events intensify, insurers are raising premiums or exiting high-risk regions, creating unsustainable costs for individuals and businesses. The enhanced Climate Diagnostic integrates into broking workflows and risk engineering surveys, allowing brokers and risk managers to quantify exposure to acute climate hazards like extreme flooding or windstorms. It conducts scenario-based assessments across portfolios, stress-testing risk management and finance strategies for short-, medium-, and long-term climate shifts. This forward-looking approach helps organizations incorporate safety measures and explore alternative risk solutions, such as physical adaptation or alternative risk transfer. Peter Carter, Head of Climate Practice at Willis, stated that embedding the tool sets a new industry standard, providing clients with real-time risk scans against ongoing climate volatility. Early identification of exposed assets enables businesses to build resilience and improve insurability before disasters occur. The tool also estimates portfolio values exposed to extreme weather and climate pattern changes, supporting stress tests for current risk financing strategies. Key features include interactive maps to visualize high-risk areas and asset exposures, designed for seamless integration into property broking and engineering workflows. The data is scientifically validated, offering an independent assessment of insurable climate-related perils. Willis aims to bridge the protection gap as climate risks escalate, helping clients adapt proactively to rising volatility. WTW, a global risk and advisory firm serving 140 countries, leverages data-driven solutions to enhance organizational resilience and performance. The Climate Diagnostic tool aligns with WTW’s mission to provide forward-looking insights for sustainable success in an evolving climate landscape.