Agadir Canyon is roughly the size of the Grand Canyon, and
was carved out by flows of sediment from landslides off the coast of
northwest Africa.
A highly interactive wind map lets you explore the different
winds at various heights, all over the planet in real time.
A global ice age that lasted more than 50 million years may
have been triggered by volcanic rocks trapping carbon dioxide.
A mysterious change in the food web of the Pacific Ocean
started in the mid-19th century, and the skeletons of deep-sea coral
tell the tale.
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