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NOVA: 42x20
Lethal Seas
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 - 2Rise of the Hackers Sep. 24, 2014
42 - 3Why Planes Vanish Oct. 08, 2014
42 - 4Surviving Ebola Oct. 08, 2014
42 - 5Ben Franklin's Balloons Oct. 22, 2014
42 - 6First Air War Oct. 29, 2014
42 - 7Bigger Than T. rex Nov. 05, 2014
42 - 8Emperor’s Ghost Army Nov. 12, 2014
42 - 9Killer Landslides Nov. 19, 2014
42 - 10First Man on the Moon Dec. 03, 2014
42 - 11Big Bang Machine Jan. 14, 2015
42 - 12Sunken Ship Rescue Jan. 21, 2015
42 - 13Sinkholes—Buried Alive Jan. 28, 2015
42 - 14Colosseum: Roman Death Trap Feb. 11, 2015
42 - 15Petra: Lost City of Stone Feb. 18, 2015
42 - 16Hagia Sophia: Istanbul’s Ancient Mystery Feb. 25, 2015
42 - 17The Great Math Mystery Apr. 15, 2015
42 - 18Invisible Universe Revealed Apr. 22, 2015
42 - 19Nazi Attack on America May. 06, 2015
42 - 20Lethal Seas May. 13, 2015
42 - 21Chasing Pluto Jul. 15, 2015
42 - 22Nuclear Meltdown Disaster Jul. 29, 2015