Geology

Cattle suffocated by carbon dioxide from Lake Nyos

Defusing Africa's Killer Lakes

In a remote region of Cameroon, an international team of scientists takes extraordinary steps to prevent the recurrence of a deadly natural disaster

A year after the eruption, the effects were felt in the northeastern United States, where vital corn crops withered from killing frosts.

Blast from the Past

The eruption of Mount Tambora killed thousands, plunged much of the world into a frightful chill and offers lessons for today

Enormous gypsum crystals in a Naica cavern

Crystal Moonbeams

A pair of Mexican miners stumble upon a room filled with what could be the world's largest crystals

This SeaWiFS view reveals the colourful interplay of currents on the sea's surface

Evidence for a Flood

Sediment layers suggest that 7,500 years ago Mediterranean water roared into the Black Sea

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When the Earth Froze

The rocks tell us that at least twice, the earth has frozen over from the poles to the equator

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Geology That's Alive

Volcanologist Richard Fiske loves fieldwork most of all--when he's on the job, the Earth moves

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Mapping the Margins

It's a violent world at the edges of our continental shelves, which could serve as a geology textbook

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If Rocks Were Worth Money, a Hilltop Farmer Could Get Rich Quick

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Geologists Worry About Dangers of Living 'Under the Volcano'

The experts believe Mount Rainier will give plenty of notice before it erupts again--the problem is that it can kill in other ways

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Phenomena, Comment and Notes

When a drop of rain carries a particle of dirt off the land and into the sea, there are repercussions from deep within Earth to the nearer reaches of space

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The Floods That Carved the West

In a geological catastrophe, a lake exploded through an Ice Age dam, and its waters swept across the Pacific Northwest; signs of its passage visible

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