The figures for natural catastrophse that occurred in 2012 are “dominated by weather extremes in the USA,” according to a report from Munich Re. The reinsurers said the U.S. “accounted for a higher proportion of global natural catastrophe losses than usual in 2012, due to a series of severe weather-related catastrophes. Last year, natural catastrophes caused $160 billion in overall losses and $65 billion in insured losses worldwide.