Swelling clay slows landslides

Rainfall can trigger landslides, and it can also cause slow-moving slides to speed up. But researchers have observed that rain also appears to cause landslides composed of clay-rich material to take longer to start moving, and to move slower than expected.

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Jane Palmer

Palmer is a science journalist based in Eldorado Springs, Colo. Follow her science writing and radio journalism at www.tjanepalmer.com. Travel for this story was supported by the European Geosciences Union’s Science Journalism Fellowship Program.

Thursday, May 17, 2018 - 06:00