History Alive

Season 2 Episode 15

A Global Warning?

Aired Unknown Nov 11, 2007 on The History Channel
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Episode Summary

A Global Warning?
Follow the world's climate experts as they investigate the most dramatic climatic events in history. It is a story of unimaginable extremes, extinctions of entire species and remarkable survivals in the face of total devastation. Learn the secrets locked away inside 300 year-old corals. Is it possible that the Arctic was once a tropical haven with crocodiles and waters hot enough to swim in? Scientists are racing to understand the weather of our past in the hope of preventing climate catastrophe in the future.moreless

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