TV NOVA - Season 42 Episode 20 : Lethal Seas NOVA - Season 42 Episode 20 : Lethal Seas 7.008/10 by 131 users 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. Details Casts Posters Images Title NOVA - Season 42 Episode 20 : Lethal Seas Alternative Titles PBS新星Nova, نوا, نووآ, PBS Nova First Air Date 1974-03-03 Last Air Date 2025-09-24 Number of Episodes 1012 Number of Seasons 52 Genres Documentary, Networks PBS, Casts Plot Keywords , Episodes List NOVA Season 42 :Episode 1 Vaccines Calling the Shots Vaccines Calling the Shots 2014-09-10 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 2 Rise of the Hackers Rise of the Hackers 2014-09-24 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 3 Why Planes Vanish Why Planes Vanish 2014-10-08 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 4 Surviving Ebola Surviving Ebola 2014-10-08 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 5 Ben Franklin's Balloons Ben Franklin's Balloons 2014-10-22 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 6 First Air War First Air War 2014-10-29 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 7 Bigger Than T. rex Bigger Than T. rex 2014-11-05 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 8 Emperor’s Ghost Army Emperor’s Ghost Army 2014-11-12 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 9 Killer Landslides Killer Landslides 2014-11-19 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 10 First Man on the Moon First Man on the Moon 2014-12-03 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 11 Big Bang Machine Big Bang Machine 2015-01-14 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 12 Sunken Ship Rescue Sunken Ship Rescue 2015-01-21 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 13 Sinkholes—Buried Alive Sinkholes—Buried Alive 2015-01-28 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 14 Colosseum: Roman Death Trap Colosseum: Roman Death Trap 2015-02-11 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 15 Petra: Lost City of Stone Petra: Lost City of Stone 2015-02-18 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 16 Hagia Sophia: Istanbul’s Ancient Mystery Hagia Sophia: Istanbul’s Ancient Mystery 2015-02-25 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 17 The Great Math Mystery The Great Math Mystery 2015-04-15 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 18 Invisible Universe Revealed Invisible Universe Revealed 2015-04-22 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 19 Nazi Attack on America Nazi Attack on America 2015-05-06 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 20 Lethal Seas Lethal Seas 2015-05-13 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 21 Chasing Pluto Chasing Pluto 2015-07-15 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and... NOVA Season 42 :Episode 22 Nuclear Meltdown Disaster Nuclear Meltdown Disaster 2015-07-29 PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and...