Science: Mysteries of Antarctica

In the present state of the world's evolution, Antarctica is the only continent that is overwhelmingly in the grip of an ice age. In its vast expanse (5,300,000 sq. mi.) lies the key to much of the world's weather. It holds 90% of all the ice on the earth's surface (far more than formerly thought), affects the surrounding oceans for hundreds or thousands of miles in all directions. For such reasons, Antarctica is a land of mystery and paradox—and a priceless laboratory for the world's scientists. Last week, as the southern summer moderated Antarctica's...

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