California Today

Climate change makes extreme coastal flooding 12 times more likely, study finds

10 June 2026 12:10

A new study reveals that human-driven climate change has made extreme coastal flooding events 12 times more likely than historically. The research, published in Nature Climate Change, analyzed tide gauge records and climate models from 1900 to 2005.

Key findings include: - Events with a 1% annual chance now occur 12 times more frequently. - Human-caused climate change accounts for a fourfold increase.

- A separate study found climate change responsible for 58% of extreme water level days from 2000 to 2018. - Experts urge adaptation measures as risks evolve.

The studies highlight that even modest sea level rise can have severe impacts, and while renewable energy adoption is growing, continued emissions control is critical.

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