Photo: Volcanic Activity Triggered Deadly Prehistoric Warming

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Lava erupts from the ocean floor in 2006 at Brimstone Pit, a deep-sea volcano in the western Pacific. Underwater volcanic events 55 million years ago in the North Atlantic Ocean sparked a deadly period of global warming, which shows similarities to today's climate change, a new study says.

Image courtesy Submarine Ring of Fire 2006 Exploration, NOAA Vents Program

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