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Warnings from the Ice

Program Overview


The global climate naturally cycles between warmer and colder periods. Recent climate changes, however, have caused scientists to wonder whether these alterations are part of the natural cycle or created by human activity. The Antarctic ice may hold some answers. Each year scientists have about a 40-day window in January and February to visit this remote continent and collect data.

By analyzing tiny bubbles of air trapped within ice cores and monitoring massive ice sheet movement, researchers glean clues about past global climates and work to predict future conditions. This NOVA program follows scientists as they battle the extreme Antarctic weather to gather data they hope will reveal new insight into the nature of global climate change.

Teacher's Guide
Warnings from the Ice
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