Tracking the effects of volcanic carbon dioxide on trees will not be a silver bullet. But it will be something that could ...

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This is the spectacular moment the Black Diamond Pool erupts in the Yellowstone National Park. The sudden hydrothermal burst from the steaming spring was captured on cameras on May 31 at 8:39 pm.

The latest Mount Etna eruption triggered an avalanche of volcanic material and sent ash miles into the air. Spectacular photos and videos capture the eruption of Europe's largest active volcano.