What we know about climate change and hurricanes


Hurricane Ida intensified overnight, becoming a Category 4 storm over the course of just a few hours. The rapid increase in strength raises questions about how much climate change is affecting hurricanes in the Atlantic Ocean. While researchers can’t say for sure whether human-caused climate change will mean longer or more active hurricane seasons in the future, there is broad agreement on one thing: Global warming is changing storms.

Scientists say that unusually warm Atlantic surface temperatures have helped to increase storm activity.

“It’s very likely that human-caused climate change contributed to that anomalously warm ocean,” said James P. Kossin, a climate scientist with the National Oceanic and Atmospheric Administration. “Climate change is making it more likely for hurricanes to behave in certain ways.”

Here are some of those ways.

1. Higher winds

There’s a solid scientific consensus that hurricanes are becoming more…

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