As the entire eastern seaboard slowly recovers from its lashing by Sandy, insurance companies are bracing for the hurricane’s aftermath and the possibility of another Katrina-scale loss. If there’s any major incumbent business with an incentive to publicly acknowledge the risks and costs of climate change, it’s the insurance industry, and especially the re-insurers — mega-corps that backstop individual insurance companies by pooling their risks globally. These companies can do the math, and what they’ve seen over the last couple of decades is a steady upward trend in both the number of extreme weather events and the resulting insured losses that they’ve been on the hook to cover. The situation is well summarized in a new report from Ceres, entitled Stormy Futures for U.S. Property/Casualty Insurers. They suggest that insurers face an existential risk from climate change.