Global Warming Hiatus May Have Been Caused by Volcanic Eruptions

January 12, 2015 12:31 PM

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Over the past 15 years, a warming "hiatus" has impacted the world. Now, scientists have found out what might have caused this stall in global warming: volcanic eruptions.

Researchers have long known that volcanoes cool the atmosphere due to the sulfur dioxide that's expelled during eruptions. Droplets of sulfuric acid that form when the gas combines with oxygen in the upper atmosphere can persist for months, reflecting sunlight away from Earth and lowering temperatur...

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