Overview
Sharply rising carbon emissions are entering Earth's seas at a staggering rate, raising their acidity. Learn how scientists are researching the effects and looking for solutions.
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42 - 1Vaccines Calling the Shots September 10, 2014
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42 - 2Rise of the Hackers September 24, 2014
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42 - 3Why Planes Vanish October 08, 2014
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42 - 4Surviving Ebola October 08, 2014
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42 - 5Ben Franklin's Balloons October 22, 2014
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42 - 6First Air War October 29, 2014
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42 - 7Bigger Than T. rex November 05, 2014
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42 - 8Emperor’s Ghost Army November 12, 2014
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42 - 9Killer Landslides November 19, 2014
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42 - 10First Man on the Moon December 03, 2014
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42 - 11Big Bang Machine January 14, 2015
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42 - 12Sunken Ship Rescue January 21, 2015
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42 - 13Sinkholes—Buried Alive January 28, 2015
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42 - 14Colosseum: Roman Death Trap February 11, 2015
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42 - 15Petra: Lost City of Stone February 18, 2015
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42 - 16Hagia Sophia: Istanbul’s Ancient Mystery February 25, 2015
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42 - 17The Great Math Mystery April 15, 2015
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42 - 18Invisible Universe Revealed April 22, 2015
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42 - 19Nazi Attack on America May 06, 2015
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42 - 20Lethal Seas May 13, 2015
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42 - 21Chasing Pluto July 15, 2015
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42 - 22Nuclear Meltdown Disaster July 29, 2015