Number of Billion-Dollar Disasters in 2023 Highest on Record - Aon Report

• Annual Climate and Catastrophe Insight report reveals global economic losses from natural catastrophes reached $380 billion in 2023
• Insured losses reached $118 billion, with a protection gap of 69 percent
• 95,000 fatalities resulted in deadliest year since 2010

Johannesburg, Jan. 25, 2024 - Aon plc (NYSE: AON), a leading global professional services firm, today published its 2024 Climate and Catastrophe Insight report, which identifies global natural disaster and climate trends to help make better decisions to manage volatility and enhance global resilience.

The report reveals that the 398 global natural disaster events caused a $380 billion (2022: $355 billion) economic loss during the 12-month period under review – 22 percent above the 21st-century average – driven by significant earthquakes and relentless severe convective storms (SCS) in the United States and Europe.

Global insurance losses during the year were 31 percent above the 21st-century average, exceeding $100 billion for the fourth year in a row. With insurance covering only $118 billion (2022: $151 billion), or 31 percent of total losses, the ‘protection gap’ stood at 69 percent (2022: 58 percent), which highlights the urgency to expand insurance coverage.

The number of large-loss natural hazard events reached record levels in 2023, with 66 billion-dollar economic loss events, and 37 billion-dollar insured loss events. Earthquakes caused the most economic losses, while severe convective storms were most costly to insurers. New Zealand, Italy, Greece, Slovenia and Croatia all recorded their costliest weather-related insurance events on record.

The report highlights that 95,000 people globally lost their lives due to natural hazards in 2023 – the highest number since 2010 – resulting largely from earthquakes and heatwaves. In terms of climate, 2023 was the hottest year on record with ‘unprecedented temperature anomalies’, and all-time highs observed in 24 countries and territories. 

“Amidst increasing volatility and complexity, there is a significant opportunity for organizations to become more resilient to the climate and catastrophe risks highlighted in our report,” said Greg Case, CEO of Aon. “By working across the private and public sector we are accelerating innovation, protecting underserved communities and better addressing the economic impacts of extreme weather to create more sustainable outcomes for businesses and communities around the world.”

Andy Marcell, CEO of Risk Capital and CEO of Reinsurance at Aon, added: “The findings of the report highlight the need for organizations – from insurers to highly impacted sectors such as construction, agriculture and real estate – to utilize forward-looking diagnostics to help analyze climate trends and mitigate the risk, as well as protecting their own workforces. Risk managers can take advantage of increasingly sophisticated tools and leverage analytics to unlock capital and make better decisions. Equally, the insurance industry plays a critical role in improving the financial resilience of communities within their portfolios and taking the opportunity to bridge the protection gap with new and relevant products.”

With efforts to limit global warming, investors can consider climate change from three perspectives: protecting their portfolios against financial risks; benefiting from growth opportunities in climate solutions, and determining how to have a positive impact and play a role in a world moving to net-zero.

“The report highlights how communities can be vulnerable to disasters in different ways. For example, earthquakes in 2023 highlighted underinsurance and the importance of regulation and enforcement of building codes,” said Michal Lörinc, head of Catastrophe Insight at Aon. “In addition, deadly floods – notably in Libya and India – reinforce the necessity for proper maintenance of infrastructure while the Hawaii fires demonstrated the critical need for reliable warning systems and forecasting.”

The top 10 global economic loss events in 2023 were:

Aon’s 2024 Climate and Catastrophe Insight report can be found at the following link: https://aon.io/2024-cci-report 

About AonAon plc (NYSE: AON) exists to shape decisions for the better — to protect and enrich the lives of people around the world. Our colleagues provide our clients in over 120 countries and sovereignties with advice and solutions that give them the clarity and confidence to make better decisions to protect and grow their business. 

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