The Snowball Earth Hypothesis - Atmospheric and Oceanic Sciences
The Snowball Earth Hypothesis - Atmospheric and Oceanic Sciences
The Snowball Earth Hypothesis - Atmospheric and Oceanic Sciences
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Discussion Questions• Did the ice start at the equator <strong>and</strong> move poleward orstart at the pole <strong>and</strong> move equatorward?• If all of the continents were concentrated near theequator how did the ice form at the poles?• If there was reduced chemical weathering at the polesdue to the colder, icier conditions wasn’t there ampleCO2 in the air to prevent ice from movingequatorward?• How deep/thick was this ice sheet?• What is keeping the temperature at a certainminimum <strong>and</strong> a certain maximum over the last 450,000years?
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