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Title | Study: Hurricanes intensifying faster near coastlines amid warming |
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Hurricanes are intensifying more rapidly — and to a greater extent closer to shore than they used to — in large part because of human-caused climate change, a new study finds. Driving the news: The study, published in the journal Earth's Future, found that hurricanes have on average gained strength more quickly in recent decades as they draw nearer to coastlines.
Why it matters: Rapidly intensifying storms close to the coast are especially dangerous since they can leave residents with little time to prepare. Zoom in: The past few years have featured several high-profile cases of potent storms that held their intensity as they crossed the shoreline, defying previous experience.
How they did it: By combining historical data during the 42-year period from 1979-2020 with theory and computer model simulations, the researchers also found evidence for why this trend may have emerged and may continue.
What they found: "Combined with anticipated growth of coastal population and wealth, tropical cyclones striking coastal areas are likely to result in more substantial economic losses, fatalities, and property damages during the late 21st century," the study states. The intrigue: The paper adds to a growing literature of tropical cyclones becoming more damaging in a warming world.
What they're saying: Karthik Balaguru, lead author of the study and a climate scientist at Pacific Northwest National Laboratory, said the main tropical cyclone intensification rate near the shore was 0.37 knots per six hours during the 1979-1999 period.
Yes, but: The study does not indicate that every storm will intensify as it approaches land, but instead looks at aggregate trends.
What's next: This study comes as multiple hurricane forecast groups have issued warnings about an unusually active, possibly record-setting Atlantic hurricane season, which officially begins on June 1.
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