Kudos to Worldwatch and Munich Re who today issued a press release on the growing toll of disasters around the world, and they studiously avoid making any statements about attribution to greenhouse gas emissions:

To a large extent this [increase] is due to socioeconomic developments, such as increasing concentrations of valuable property and infrastructure, rising population, and the settlement and industrialization of exposed areas. Climate change and the increase in major weather-related natural disasters that is expected as a result need to be considered as essential drivers of economic losses in the future.