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(Relocation to Auditorium)
Thursday May 10, 2018 (Discussion – Climate Feedback Mechanisms; Melting of the Cryosphere and Sea-Level Rise) (Relocation to Auditorium)
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The Launch Pad Thursday, 5/10/18 1/1 No Launch Pad Today!
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Announcements Earth/Space classes should be back in our classroom tomorrow! Please check the signs in the halls!
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Remediation for Quiz 17 runs through next Wednesday!
Announcements Remediation for Quiz 17 runs through next Wednesday!
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QUIZ 17 F2 5/7 S2 5/8 F3 5/9 N/A Assignment Next Tuesday
Summative or Formative # Date Issued Gone Missing Day Last Day Accepted eResearch Paper - Climate F2 5/7 Next Tuesday QUIZ 17 S2 5/8 Next Wednesday WS - Human Impact on Global Climate; Energy Consumption; The Atmospheric Response F3 5/9 N/A Hold for eResearch Paper
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Climate Change Part 2
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Climate-Feedback Mechanisms
So far the climate-feedback mechanisms we discussed have magnified the temperature rise caused by the buildup of carbon dioxide. Because these effects reinforce the initial change, they are called positive-feedback mechanisms. However, other effects must be classified as negative-feedback mechanisms because they produce results that are just the opposite of the initial change and tend to offset it .
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Springtime breakup of ice near Antarctica
Springtime breakup of ice near Antarctica. The inset shows a likely feedback loop.
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Some Possible Consequences of Global Warming
Global warming can alter the distribution of the world’s water resources and can effect the productivity of agricultural regions. It can cause a rise in global mean sea level. By changing weather patterns, global warming could cause a higher frequency and intensity of hurricanes. It can cause shifts in the paths of large-scale cyclonic storms. Global warming could also cause changes in frequency and intensity of heat waves and droughts.
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Global Sea-Level Rise
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The Effects of Sea-Level Changes on Gently-Sloping Shorelines
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The Effects of Sea-Level Changes on Steeply-Sloping Shorelines
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Sea Ice Melt
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Sea Ice Melt Figure 20.26B
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Shrinking and Disappearing Lakes
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Use today’s notes on the website (5/10)
Worksheet Use today’s notes on the website (5/10) Climate Feedback Mechanisms; Melting of the Cryosphere and Sea-Level Rise
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