Transverse instability of megaripples

Aeolian ripples, which form regular patterns on sand beaches and desert floors, indicate the fundamental instability of flat sand surfaces under the wind-induced transport of sand grains.

Iceland's Katla volcano is getting restless

(AP) -- If Iceland's air-traffic paralyzing volcanic eruption last year seemed catastrophic, just wait for the sequel. That's what some experts are saying as they nervously watch rumblings beneath a much more powerful Icelandic ...

Man, climate combine to erode Cancun's beaches

(AP) -- Cancun's eroding white sand beaches are providing a note of urgency to the climate talks being held just south of this seaside resort famed for its postcard-perfect vistas.

What science says about beach sand and stomach aches

By washing your hands after digging in beach sand, you could greatly reduce your risk of ingesting bacteria that could make you sick. In new research, scientists have determined that, although beach sand is a potential source ...

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