Show: Climate Change in High Latitudes and Oceanic Regions[6]
Slide: Why Do Scientist Believe that Humankind has Contributed to Global Warning?

   

Slide ID: 155

 1 :Climate Change from the Marine Perspective :Climate Change from the Marine Perspective 2 Climate Change Themes Discussed Today Climate Change Themes Discussed Today
 3 There is Some Urgency in Taking Action to Limit Green House Gas Emissions There is Some Urgency in Taking Action to Limit Green House Gas Emissions 4 The Ice Core Record: (A geological Time Perspective of Atmospheric CO<sub>2</sub>) The Ice Core Record: (A geological Time Perspective of Atmospheric CO2)
 5 Glacial-IInterglacial Temperature changes correspond to ~4 degrees C in global temperature change. Glacial-IInterglacial Temperature changes correspond to ~4 degrees C in global temperature change. 6 Atmospheric CO<sub>2</sub> Levels over Geologic Time Atmospheric CO2 Levels over Geologic Time
 7 Natural versus Anthropogenic changes in carbon dioxide content of the armosphere Natural versus Anthropogenic changes in carbon dioxide content of the armosphere 8 Ice Age glacial extent 18,000 years ago. Ice Age glacial extent 18,000 years ago.
 9 How Well Do We Understand the Process Causing Climate Change? How Well Do We Understand the Process Causing Climate Change? 10 How Have Global Temperatures Varied Over the Past 100 to 1000 years? How Have Global Temperatures Varied Over the Past 100 to 1000 years?
 11 Has it been statistically warmer over the past 40 years? Has it been statistically warmer over the past 40 years? 12 Over the past 40 years certainly warmer and likely more extreme precipitation as well! Over the past 40 years certainly warmer and likely more extreme precipitation as well!
 13 Why Do Scientist Believe that Humankind has Contributed to Global Warning? Why Do Scientist Believe that Humankind has Contributed to Global Warning? 14 So how did we get into this carbon mess that is driving all of the global warming? So how did we get into this carbon mess that is driving all of the global warming?
 15 Global Fossil CO<sub>2</sub> Emissions: The Past 30 Years! Global Fossil CO2 Emissions: The Past 30 Years! 16 Fate of anthropogenic CO<sub>2</sub> emissions (2008-2017) Fate of anthropogenic CO2 emissions (2008-2017)
 17 Global Carbon Budget: Sources and Sinks Global Carbon Budget: Sources and Sinks 18 Global Carbon Budget 1870 to 2017 Global Carbon Budget 1870 to 2017
 19 Total global emissions by source Total global emissions by source 20 Uptake of CO<sub>2</sub> by Ocean comes at a cost: Ocean Acidification Uptake of CO2 by Ocean comes at a cost: Ocean Acidification
 21 The causes of Ocean Acidification and Global Climate Change are the <u>same</u>! The causes of Ocean Acidification and Global Climate Change are the same! 22 Ocean Acidification makes it <u>much</u> harder for these CaCO<sub>3</sub> biota to  make their hard parts Ocean Acidification makes it much harder for these CaCO3 biota to make their hard parts
 23 Predicted Temperature Changes from Doubling Atmospheric CO<sub>2</sub> Levels Predicted Temperature Changes from Doubling Atmospheric CO2 Levels 24 Arctic Sea Ice is Melting <u>Faster</u> than the Global Warming Models Predict!!! Arctic Sea Ice is Melting Faster than the Global Warming Models Predict!!!
 25 In Addition to Sea Ice Melting, Some of the Polar Ice Caps Are Beginning to Show Signs of Melting In Addition to Sea Ice Melting, Some of the Polar Ice Caps Are Beginning to Show Signs of Melting 26 Scientists are making detailed measurements of continental ice sheet volumes. Scientists are making detailed measurements of continental ice sheet volumes.
 27 Bottom Water Formation Occurs in Areas of Sea Ice Formation Bottom Water Formation Occurs in Areas of Sea Ice Formation 28 Is Ther Any Evidence That Bottom Water Formation and Climate Change May be Correlated? Is Ther Any Evidence That Bottom Water Formation and Climate Change May be Correlated?
 29 Another Serious Ramification of Global Warming is Sea Level Rise! Another Serious Ramification of Global Warming is Sea Level Rise! 30 What Happens to Sea Level if Greenland and Antarctic Ice Sheets Melt? What Happens to Sea Level if Greenland and Antarctic Ice Sheets Melt?
 31 In the Antarctic (90% of the World"s Ice), What Ice Sheet is the Most Vulnerable to Global Warming? In the Antarctic (90% of the World"s Ice), What Ice Sheet is the Most Vulnerable to Global Warming? 32 Recent Breakup of Antarctic Ice Shelves Recent Breakup of Antarctic Ice Shelves
 33 Why is the Breakup of Antarctic Ice Shelves Such a Big Concern? Why is the Breakup of Antarctic Ice Shelves Such a Big Concern? 34 DR. D"s Research DR. D"s Research
 35 Fiction versus Reality: Larsen Ice Shelf - July 12<sup>th</sup>, 2017 Calving Event Fiction versus Reality: Larsen Ice Shelf - July 12th, 2017 Calving Event 36 Antarctic Ecosystem Research Following Ice Shelf Collapse and Iceberg Calving Events Antarctic Ecosystem Research Following Ice Shelf Collapse and Iceberg Calving Events
 37 Other Evidence of Climate Change Here in the Carolinas! Other Evidence of Climate Change Here in the Carolinas! 38 How Sensitive Are We Here in North Carolina to Sea Level Rise? -- Very High! How Sensitive Are We Here in North Carolina to Sea Level Rise? -- Very High!
 39 Societal Implications of Global Warming - Is there Urgency? -- Yes!!!! Societal Implications of Global Warming - Is there Urgency? -- Yes!!!! 40 The Paris Agreement The Paris Agreement
 41 The Paris Agreement - continued The Paris Agreement - continued 42 The Paris Agreement: What People Want The Paris Agreement: What People Want
 43 The Paris Agreement: Limitations The Paris Agreement: Limitations 44 On What Grounds Can the Current Administration Pull Out of the Paris Agreement? On What Grounds Can the Current Administration Pull Out of the Paris Agreement?
 45 Historical cumulative fossil CO<sub>2</sub> emissions by country Historical cumulative fossil CO2 emissions by country 46 <i>How to Build a Habitable Planet</i>, by Wallace S.Broecker How to Build a Habitable Planet, by Wallace S.Broecker
 47 What Can We Do To Counteract Global Warming and Ocean Acidification What Can We Do To Counteract Global Warming and Ocean Acidification 48 These High-Ltitude Ecosystems Are Quite Fragile - But They Accommodate Some of the Most Spectacular Fauna on the Planet These High-Ltitude Ecosystems Are Quite Fragile - But They Accommodate Some of the Most Spectacular Fauna on the Planet