Wpisy oznaczone tagiem "Volcanoes" (2)  

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Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago. Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere. When they stopped erupting, Earth's climate was thrown off balance, and the ice age began....

Link: www.sciencedaily.com/(…)091026132932.htm…

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