Rising sea levels and increasing sea surface temperatures can produce more intense hurricanes.
With Cuba and Florida left reeling after Hurricane Ian, which made landfall in September 2022 and was one of the region's most powerful and destructive storms in decades, it is tempting to attribute the carnage of yet another deadly hurricane season to climate change.
"The overall risk — how the frequency and intensity of storms is affected by global warming — is much more complicated," Knutson told Live Science.A warming planet will, as a rule, give us more intense hurricane seasons, researchers have discovered. Rising sea levels, driven by climate change, mean more coastal flooding from storm surges when hurricanes make landfall.
"Increased greenhouse gases may cause sea surface warming, which increases hurricane intensity," Knutson said."But there's even more warming in the upper troposphere, and that puts the brakes on hurricane intensity." Knutson nonetheless expects to ultimately see an uptick."We think global warming will still result in a net increase in hurricane intensity, but not nearly as much as if we had only sea surface warming," he said.
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