Coal formation nearly froze Earth

Burning coal releases carbon dioxide, which warms the planet when the gas escapes into the air. On the flip side, coal formation sequesters carbon dioxide removed from the atmosphere by plants, which contributes to global cooling as the planet’s greenhouse gas blanket thins. According to new research, so much carbon was removed from the atmosphere in the Carboniferous Period, when most of Earth’s coal reserves formed, that the planet became almost completely covered in ice.

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Lucas Joel

Lucas Joel was EARTH's 2015 summer intern.

Joel was EARTH’s 2015 summer science writing intern and is now a freelance science writer. He has a master's in paleontology from the University of California, Riverside. Based out of Ann Arbor, Mich., he ventures often to the sandstone cliffs of Kentucky’s Red River Gorge and dreams of hiking up Mont Blanc in the French Alps. 

Wednesday, February 21, 2018 - 06:00

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