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Rapid Earth Changes in Historic Times

What happened to the Sahara desert? What's going on in Java, man? Geologists are surprised sometimes by recent major changes.

Possible Super-Grand Canyon Found Under Antarctica

Another record-breaking canyon may exist under the ice of the south polar continent, carved by water.

Scientific Markers Can Mislead

In historical sciences, observable phenomena are often used as indicators of past phenomena. Some recent examples show how these can mislead researchers.
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