Climate Action

Climate change: This is the impact of extreme weather events on the economy

a man clings to the top of a vehicle before being rescued by the U.S. Coast Guard from the flooded streets of New Orleans, in the aftermath of Hurricane Katrina

Extreme weather events likie flooding have increased over the last decade and are expected to worsen due to climate change. Image: REUTERS/Robert Galbraith

Katharina Buchholz
Data Journalist, Statista
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Climate Indicators

  • Hurricane Ida has caused widespread flooding and a state of emergency declaration in New York.
  • Research shows that over the last decade, global economic losses from extreme weather events have grown more costly.
  • Insurance service provider AON has stated that this is expected to worsen further due to climate change.

Hurricane Ida, the fourth and to-date strongest storm of the 2021 Atlantic hurricane season, has made its way to New York City, albeit as a much weaker tropical storm. Nevertheless, Ida caused widespread flooding and a state of emergency declaration in the United States' biggest city. The current season has so far produced four out of the six to ten predicted hurricanes, but the most active and dangerous time between August and October is still underway.

Over the past decade, global economic losses from weather events like storms, floods, droughts and wildfires have grown more costly. During the first decade of the 21st century, there were only two years when weather disasters cost more than $200 billion (including 2010). In the second decade, those $200 billion-dollar-a-year losses seem to have become more normal, with seven out of ten years grossing over $200 billion in global losses from weather events. The costliest year on record was registered in 2017, totaling over $470 billion in losses, including those from major Hurricanes Harvey, Maria and Irma. All in all, weather damages totaled approximately $2.5 trillion around the globe between 2011 and 2020, up almost 50 percent from the 2001-2010 figure.

Have you read?

As part of the 2020 Weather, Climate and Catastrophe Insight report, insurance service provider AON points out that due to the influences of climate change, it is expected that "the storms which do develop have the potential to be larger, more intense, and pose a greater risk to coastal and inland vulnerabilities.


What’s the World Economic Forum doing about climate change?

this chart shows how weather damage grew more costly in the last decade
Weather damages totaled approximately $2.5 trillion around the globe between 2011 and 2020. Image: Statista
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