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Natural disasters resulted in a $225 billion economic cost in 2018

Aon plc has published its ‘Weather, Climate & Catastrophe Insight: 2018’ annual report, which evaluates the impact of global natural disaster events to identify trends, manage volatility and enhance resilience.  

The report states that 394 natural catastrophe events in 2018 generated economic losses of USD225 billion. Of that total, private sector and government-sponsored insurance programs covered USD90 billion of the total – the fourth-highest year on record. This means the protection gap, which is the portion of economic losses not covered by insurance, was 60 percent and at its lowest level since 2005.

The biggest cause of catastrophes in 2018 were tropical cyclones, with several significant landfalling storms. These included Hurricane Michael and Hurricane Florence (United States), Typhoon Jebi and Typhoon Trami (Japan), Typhoon Mangkhut (Philippines, Hong Kong, China), and Typhoon Rumbia (China). As a result, 2017 and 2018 resulted in the costliest back-to-back years on record for both economic losses (USD653 billion) solely due to weather-related events, and for insured losses across all perils (USD237 billion).

Andy Marcell, CEO of Aon's Reinsurance Solutions business, commented: "2018 was another active year for global natural disasters. While there was not a singular 'mega' catastrophe event, there were 42 billion-dollar events which aggregated to a slightly above-average year. The re/insurance industry continues to withstand the payouts backed up with USD595 billion of capital but focus on managing the cost of changing climate and weather events by helping to close the protection gap."

Additional major events during the year included a series of major wildfires in Northern and Southern California. The costliest insured loss event of 2018 was the Camp Fire at USD12 billion, which also became California's deadliest and most destructive fire on record.

Steve Bowen, Director and Meteorologist at Aon's Impact Forecasting team, commented: "Among the takeaways from the events of 2018 was the recognition that catastrophe risk continues to evolve. The complex combination of socioeconomics, shifts in population and exposure into vulnerable locations, plus a changing climate contributing to more volatile weather patterns, is forcing new conversations to sufficiently handle the need for mitigation and resilience measures. Natural disasters are always going to occur. How well we prepare can and will play a key role in future event losses."

Other significant regional events during the year included:

  • October's Camp Fire in the US destroyed 18,804 structures, including most of the city of Paradise. Total economic costs were estimated to approach USD15 billion. Overall insured losses from wildfires in California set a new record for the second year in a row.
  • In Japan, torrential rains during the month of July led to catastrophic flooding across much of the country with total damage nearing USD10 billion.
  • A multi-billion-dollar flood occurred in India's state of Kerala during the seasonal summer monsoon months.
  • Much of Northern and Central Europe endured prolonged summer drought conditions as aggregate costs, mostly to agriculture, which tallied to near USD9 billion. Multi-billion-dollar drought events also impacted the United States, Argentina, China, and India.
  • A significant stretch of severe weather and flooding impacted Italy and Austria during October and November, as the economic toll topped USD5 billion.
  • Reaching USD2.1 billion of insured losses, Windstorm Friederike was the fifth-costliest European windstorm of the 21st century.

Read the full report



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