Residents were evacuated from some areas at the end of September when volcanic activity increased to more than 150 tremors in 24 army was put on standby for a mass evacuation.
Ward says long ago volcanic activity spewed carbon dioxide into the air and warmed the oceans.
Scientists believe that during the Cretaceous period, a spate of volcanic activity caused plant life to bloom on the surface of the oceans.
Geologic features imply that liquid water once flowed across the surface, and volcanic activity, now dead, once flourished, recycling chemicals and minerals between the surface and the interior.
Here, volcanic activity beneath the earth’s crust sends sulfur-rich plumes spewing up from gashes in the seafloor into the ocean, where the plumes support unique ecosystems of animals and microbes.
This may have been triggered by a 250-million-year lull in volcanic activity, which would have meant less carbon dioxide being pumped into the atmosphere, and a reduced greenhouse effect.
A fiery new cone on Mount Etna provides scientists with new volcanic activity to study.
This was followed by a rise in the growth of ferns, which are often the first plants to return in an environment ravaged by volcanic activity.
What's worse is the volcano isn't even out of ammunition, although scientists say volcanic activity has slowed down in recent weeks.
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