Most insurance companies do not have comprehensive strategies to cope with climate change despite mounting weather-related claims, says a report to be released Thursday. Of 184 companies surveyed, only 23 had such strategies, and 13 of those that did were foreign-owned, according to report by Ceres, a Boston-based non-profit that promotes eco-minded business practices. The report says the most prepared tend to be the largest companies with scientists on staff and those that insure property rather than life or health.