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Stories about: Cryogenian Period

Prehistoric Ice Age Averted by Carbon Dioxide Carbon dioxide is now the main substance responsible for the global warming effect that our planet is experiencing, and international efforts are aimed at finding a solution to reduce its presence in our air. Few people know that CO2 also saved our planet in the past. Without it, life as we know it would have been ma... 2 December 2008 02:51 GMT