November 20, 2007
The Climate of Antarctica
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About 200 million years ago Antarctica was joined to S America, Africa, India, Australia, and New Zealand in a single, warm continent called Gondwana. According to the plate tectonics theory, Antarctica split from Gondwana and drifted to its present location at the South Pole. Persistent westerly winds began to circle Antarctica, blocking heat transport to the continent and making it the coldest region on Earth. When was the lowest temperature ever recorded on Earth, -89.4C (-129F), reported?
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