Actuarial science has always been about managing uncertainty, but today’s actuaries face a new frontier: environmental, social, and governance (ESG) risks. If you’ve worked in insurance, pensions, or risk management, you know how much models rely on historical data. But what happens when the past is no longer a reliable guide? Climate change, social upheaval, and evolving governance standards are rewriting the rules. Crafting actuarial models for ESG risks isn’t just a technical challenge—it’s a fundamental shift in how we think about risk, value, and the long-term health of organizations.