In Brief

Don't Try This at Home: Walking on Lava

From the Annals of Bad Ideas comes this story and video of a man walking up a lava flow on Sicily's Mt. Etna, from Erik Klemetti, a geoscientist at Denison University in Ohio and author of Wired's Eruptions Blog.

BUT — not surprisingly — walking up a lava flow is still a really, really bad idea. If you watch the video closely, so you can see a flash under the man's shoe when he takes his final step on the flow. That's probably his shoe combusting — combusting! — from the heat of the flow, Klemetti said. (And he has first-hand experience, having sampled lava at Hawaii's Kilauea volcano and barely being able to handle the heat from standing near a flow there.) Speaking of Kilauea, the lava lake atop its Halema'uma'u crater actually does have lava as light as water, so stepping on the lava there might be an even worse idea.

Klemetti has also addressed whether a person stepping in hot lava would sink a la Gollum in "Lord of the Rings: Return of the King." You'll have to read to find the answer.

And because it can't be said too many times: Please don't try to walk on lava!

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Andrea Thompson
Live Science Contributor

Andrea Thompson is an associate editor at Scientific American, where she covers sustainability, energy and the environment. Prior to that, she was a senior writer covering climate science at Climate Central and a reporter and editor at Live Science, where she primarily covered Earth science and the environment. She holds a graduate degree in science health and environmental reporting from New York University, as well as a bachelor of science and and masters of science in atmospheric chemistry from the Georgia Institute of Technology.