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Coastal flooding could hit nearly 20% of global GDP as climate change accelerates storms, sea level rise

Coastal flooding could hit nearly 20% of global GDP as climate change accelerates storms, sea level rise

-Coastal flooding made worse by climate change could damage assets worth up to $14.2 trillion by 2100 as rising seas inundate coastal homes and infrastructure, according to new research published in Scientific Reports.

-Without investment in flood defense and a decline in greenhouse gas emissions, there will be an increase of about half of the world’s land, half of the global population and nearly half of global assets at risk of flooding by 2100.

-Flooding will cause the most damage in the northeast U.S., northwest Europe, southeast Asia and northern Australia.

Coastal flooding made worse by climate change could damage assets worth up to $14.2 trillion by 2100 as rising seas inundate coastal homes and infrastructure, according to new research published on Thursday in Scientific Reports.

Without worldwide investment in flood defenses or a decrease in global emissions, the outlook is stark: Within the century, the land area flooded will increase by 48% (roughly the size of France), the population impacted will increase by 52% (about 287 million people) and the infrastructure affected will increase by 46%, which will comprise about 20% of global GDP, researchers warned.

“We are attempting to understand the magnitude of the global scale impacts of future coastal flooding,” said Ian Young, a professor at the University of Melbourne and an author of the study.
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